Informal vs Formal (look for → search) | English Vocabulary
Why Phrasal Verbs Are Almost Always the Informal Option
That's a more useful rule than memorizing individual word pairs. It means that even with expressions you haven't specifically studied, you can make a reasonable guess about register just by looking at the structure. Two words where one would do? Probably informal. A single, slightly longer word that covers the same meaning? Probably the version you want in a professional email or a formal document. It doesn't work every time — but it works often enough to be worth keeping in mind.
🎯 Video Summary
I made this video with a specific atmosphere in mind — classical music, natural backgrounds, open fields with wind moving through them. Most vocabulary videos are fast-paced by design, which works for some people but not everyone. I wanted something you could watch without feeling like you needed to pause and rewind every few seconds. The informal and formal versions of each pair appear one at a time, which sounds simple, but there's something about encountering a word in a calm environment that makes it easier to remember than reading it off a list. That was the idea behind it, anyway.
This video is designed as a focused vocabulary listening practice using words from the Oxford 3000 list, which represents the most important and frequently used English words for learners.
Instead of full sentences or situational examples, the video presents clear word-to-word transformations, showing how common everyday expressions can be replaced with more precise, single-word verbs. This allows learners to recognize vocabulary patterns quickly and build stronger word awareness without distraction.
Each word pair appears visually while the pronunciation is played, making it easy to listen, read, and repeat naturally. The background classical music is intentionally kept calm and steady, helping learners stay focused and making the video suitable for repeated listening during study sessions, breaks, or passive review.
This format is especially useful for:
- Learners who want to expand Oxford 3000 vocabulary efficiently
- Improving recognition of formal and written English words
- Passive listening practice without complex explanations
- Building familiarity with concise verb usage in English
The video works best as a listening-based supplement to the vocabulary list below, allowing you to reinforce the words through sound and repetition while maintaining concentration.
Why Learn Both Forms?
Phrasal verbs are common in everyday conversation, while their formal alternatives appear more frequently in academic writing, business correspondence, and professional settings. Mastering both forms gives you flexibility and helps you communicate appropriately in any situation.
Let's explore six essential verb pairs from the Oxford 3000 that every English learner should know.
1. Get Better → Improve
"improve" almost always pairs better with specific, measurable things — skills, results, performance, conditions. "Get better" is more flexible and can apply to almost anything, including situations that are hard to quantify. "The atmosphere in the office is getting better" sounds natural. "The atmosphere in the office is improving" sounds slightly like something from an HR memo. Both are technically fine — but one fits the moment better than the other, and that's the whole point.- Phrasal verb: Get better
- Usage: Informal, Conversational
- Example: "My English is getting better every day."
- Formal alternative: Improve
- Usage: Professional, Academic writing
- Example: "The company's performance has improved significantly this quarter."
- When to Use Each:
- Conversation with friends: "I hope you get better soon!"
- Business report: "We aim to improve customer satisfaction by 25%."
2. Go On → Continue
"Go on" and "continue" are close enough that swapping one for the other rarely causes confusion — but the situations where each feels right are more different than they appear. "Go on" is conversational by nature. It's what you say in the middle of something — a story, a meeting, a task — when you want things to keep moving. It has a forward momentum to it, almost like a nudge. "Continue" is more neutral and deliberate. It doesn't push — it simply states that something will proceed, which is why it fits better in writing and formal speech.- Phrasal verb: Go on
- Usage: Casual speech, Informal writing
- Example: "Please go on with your story."
- Formal alternative: Continue
- Usage: Formal contexts, Professional communication
- Example: "The meeting will continue after a brief recess."
- When to Use Each:
- Informal: "Go on, tell me what happened!"
- Formal: "We will continue our discussion tomorrow."
3. Look For → Search
"Look for" and "search" both describe the act of trying to find something — but the scale and intention behind them are different. "Look for" is casual and open-ended. It suggests a general effort without implying any particular method or urgency. "I'm looking for my keys" is something you say while patting your pockets. "Search" implies something more systematic, more deliberate, often more serious. It suggests that finding the thing actually matters, and that some kind of structured effort is involved. That's why "search" shows up in legal contexts, technical language, and formal writing — and why "look for" almost never does.- Phrasal verb: Look for
- Usage: Everyday conversation
- Example: "I'm looking for my keys."
- Formal alternative: Search
- Usage: Official documents, Professional writing
- Example: "Researchers are searching for a cure for the disease."
- When to Use Each:
- Casual: "I've been looking for a new apartment."
- Professional: "The company is searching for qualified candidates."
4. Put Off → Delay
"Put off" and "delay" both mean pushing something to a later time — but how they feel in a sentence is quite different. "Put off" is informal and slightly loaded. It often implies reluctance or avoidance — not just that something has been moved, but that someone didn't want to deal with it. "I've been putting off this conversation" isn't just a scheduling note. It says something about the speaker's relationship to the task. "Delay," by contrast, is neutral. It describes a change in timing without suggesting anything about why, which makes it the more professional choice when you want to communicate a change without revealing — or implying — discomfort.- Phrasal verb: Put off
- Usage: Informal situations
- Example: "Don't put off your homework until tomorrow."
- Formal alternative: Delay
- Usage: Business, Academic, Formal contexts
- Example: "The board decided to delay the decision until next month."
- When to Use Each:
- Conversational: "Stop putting off that dentist appointment!"
- Business email: "We regret to inform you that we must delay the project deadline."
5. Say Sorry → Apologize
"Say sorry" and "apologize" both acknowledge wrongdoing — but they sit in very different places on the formality scale, and that difference goes beyond just the words themselves. "Say sorry" is what you do in the moment — immediate, personal, often instinctive. It's the version that comes out before you've had time to think about it. "Apologize" implies something more deliberate. A decision has been made to acknowledge the wrong, and the word itself signals that the acknowledgment is being offered formally, with some weight behind it. In personal contexts, the dynamic flips. "I apologize" said to a friend after a minor disagreement can actually sound cold — like you're treating the relationship as a formal transaction. "I'm sorry" does the same job but keeps the human connection intact.- Phrasal verb: Say sorry
- Usage: Casual, Friendly exchanges
- Example: "You should say sorry to your sister."
- Formal alternative: Apologize
- Usage: Professional apologies, Formal settings
- Example: "The company apologizes for any inconvenience caused."
- When to Use Each:
- Personal: "I need to say sorry for being late."
- Corporate: "We sincerely apologize for the error in your billing statement."
6. Think About → Consider
"Think about" and "consider" cover the same mental territory — but the depth implied by each is different. "Think about" is open and exploratory. It doesn't commit to any particular outcome or level of seriousness. "I've been thinking about changing jobs" could mean anything from a passing thought to a genuine plan in progress. "Consider" implies more deliberate engagement. When you consider something, there's an implication that you're weighing it against alternatives, that the outcome actually matters, and that a decision may follow. "I'm considering a career change" sounds like something is in motion.That distinction is worth keeping in mind in professional communication, where the choice between the two can change how seriously a statement is taken. "We're thinking about expanding into new markets" sounds tentative — like an idea that's still floating. "We're considering expanding into new markets" signals that the idea has moved past the daydream stage and into actual evaluation. Same information, different impression. And in formal writing — proposals, reports, board communications — "consider" is almost always the expected choice, partly because it implies the kind of careful deliberation those contexts demand, and partly because "think about" simply sounds too casual to carry the weight of what's being discussed.
- Phrasal verb: Think about
- Usage: Everyday speech
- Example: "I'm thinking about changing jobs."
- Formal alternative: Consider
- Usage: Professional decisions, academic writing
- Example: "The committee will consider all applications carefully."
- When to Use Each:
- Informal: "Think about what I said."
- Formal: "Please consider our proposal for the new initiative."
Tips for Choosing the Right Form
a. Know your audience:
Use phrasal verbs with friends and colleagues in casual settings; opt for formal alternatives in professional communications.
b. Consider the medium:
Emails to clients, reports, and presentations typically require formal vocabulary, while text messages and casual conversations work well with phrasal verbs.
c. Academic writing:
Always prefer the formal single-word verb in essays, research papers, and academic assignments.
d. Practice both:
Don't abandon phrasal verbs entirely—they're essential for natural-sounding English in everyday situations.
Common Mistakes to Avoid
a. Over-formalizing casual conversation:
Saying "I must apologize" when chatting with friends can sound stiff and unnatural.
b. Using phrasal verbs in formal writing:
"The results got better" is less professional than "The results improved."
c. Mixing registers:
Stay consistent within a single piece of communication.
The most practical thing you can take from this post isn't the word pairs themselves — it's the pattern behind them. Almost every informal expression covered here is a phrasal verb: "put off," "look for," "go on." And almost every formal equivalent is a single, longer word: "delay," "search," "continue." That pattern is consistent enough that you can use it as a working rule when you encounter expressions you haven't specifically studied.
The next time you come across a phrasal verb in an email or document and it feels slightly off for the context, ask yourself: is there a single word that covers the same meaning? More often than not, there is — and that single word is almost certainly the more formal option. "Find out" becomes "discover." "Turn down" becomes "reject." "Give up" becomes "abandon." You don't need a list to work this out. You just need to know the pattern exists, and then start noticing it in the English you're already reading and writing every day.
🌐 The related posts below cover more informal and formal word pairs commonly used in everyday English, professional settings, and polite conversation.
Informal vs Formal (figure out → understand) | English Vocabulary