Emphatic "do"

B2 Upper Intermediate

The emphatic 'do' uses the auxiliary verb to add stress or contrast to an affirmative statement in the present or past simple. It is commonly used to correct a misunderstanding or to express strong feelings.

Overview

In English, the auxiliary verb do (or does/did) is typically reserved for questions and negative sentences. However, it can be inserted into affirmative sentences to provide emphasis. This is often used to contradict a previous statement, to show strong emotion, or to make a polite request more persuasive.

Form

Subject + do/does/did + base verb

The auxiliary verb must match the subject and tense. Crucially, the main verb always reverts to its base form (infinitive without 'to'), as the auxiliary carries the tense and person markers.

Examples

Common mistakes

She does likes the new office.
She does like the new office.
When using emphatic 'do', the main verb must be in the base form. Do not add -s for third-person singular.
They did went to the party.
They did go to the party.
The auxiliary 'did' already indicates the past tense, so the main verb must remain in the base form.

Standard vs. Emphatic

The emphatic version is usually spoken with a heavier stress on the auxiliary verb to signal the speaker's intent.

Standard Affirmative	Emphatic Affirmative
I enjoy cooking.	I do enjoy cooking.
He works hard.	He does work hard.
We saw the movie.	We did see the movie.

Practice

Rewrite the sentence to emphasize the action: 'She finished her homework.'
Show answer
She did finish her homework.
Answer:She did finish her homework.
Why:To add emphasis in the past tense, use 'did' followed by the base form of the verb 'finish'.
Correct the error: 'He does wants to join the team.'
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He does want to join the team.
Answer:He does want to join the team.
Why:The main verb must be in the base form ('want') because the auxiliary 'does' already shows the third-person singular agreement.
Respond to the statement 'You never listen to me' using emphatic 'do'.
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I do listen to you.
Answer:I do listen to you.
Why:Using 'do' contradicts the negative statement 'never listen' and provides strong affirmation.