It's __ vs This is

When to use each in English, with meaning, register, and examples.

It's __

High-frequency chunk

This is

Top 1,000 (very common)
 It's __This is
Pronunciation🇬🇧 //ɪts//🇺🇸 //ɪts//🇬🇧 //ðɪs ɪz//🇺🇸 //ðɪs ɪz//
MeaningIt is somethingA phrase used to introduce something or give an explanation.
ExampleIt's going to rain today.This is the project I was telling you about.
RegisterNeutralNeutral
How commonHigh-frequency chunkTop 1,000 (very common)
Collocationsit's my turn, it's your choice, it's too lateThis is great, This is important, This is mine, This is how it works
Common mistakesOmitting 'is', saying 'It's hot outside' as 'It's hot.', Confusing with 'Its' which indicates possession., Using 'it's' incorrectly with plural nouns.Omitting 'is' in informal speech, Using inappropriately in very formal presentations, Misplacing the phrase in a sentence
Usage notesThis phrase is often used to introduce or emphasize a statement. It can be used in both formal and informal contexts, but is more common in conversation.Commonly used to point out or highlight something. It is appropriate in both formal and informal contexts.

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It's __

Frequently asked questions: It's __ vs This is

What's the difference between It's __ and This is?

It's __: It is something This is: A phrase used to introduce something or give an explanation.

Can you show an example of each?

It's __: It's going to rain today. This is: This is the project I was telling you about.

Can I use It's __ and This is interchangeably?

Not always. It's __ and This is are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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