subject + do/does + base verbUse do or does before the base verb to add emphasis in the present.
Emphatic Do
B1Use do, does, or did before the base verb to add emphasis: I do agree; she did call. This is common in correction, contrast, and strong confirmation.
What you'll learn
- Make a statement sound stronger with do, does, or did.
- Keep the main verb in the base form after the auxiliary.
- Pick do, does, or did from the subject and the time.
- Use emphatic do to correct doubt or contrast two ideas.
Structure
subject + did + base verbUse did before the base verb to add emphasis in the past.
Build a sentence
Subject
Verb
Shedoeslike
She does like jazz.
Use does with she; the main verb stays bare.
When to use
Strong confirmation
Use it when the speaker wants to strongly confirm something: I do remember your name. She did send the file.
Correction
Use it to correct a wrong idea: He does live here, not in Boston. Maria did call you, not Tom.
Contrast
Use it to contrast two facts: I don't like the hotel, but I do like the beach. Lisa didn't text, but she did email.
Markers
reallyactuallybutnotyesin fact
Common mistakes
Wrong
She does likes jazz.
Correct
She does like jazz.
Does already carries the present form. The main verb stays in the base form.
Wrong
Tom did called you.
Correct
Tom did call you.
Did already marks past time. The main verb must be bare.
Wrong
He do know the answer.
Correct
He does know the answer.
In present time, he, she, and it take does, not do.
Wrong
She does call me last night.
Correct
She did call me last night.
For past-time emphasis, use did for every subject.
Wrong
I like it, really.
Correct
I do like it.
When you want a clear strong reply, emphatic do makes the statement sound firmer.
Common misconceptions
❝ Do and did belong only in negatives and questions. ❞
They also appear in affirmative statements when the speaker wants emphasis: I do agree. She did call me.
❝ I like it and I do like it mean exactly the same thing in every situation. ❞
Both can describe the same fact, but emphatic do adds stronger feeling, correction, or contrast.
Skills in this rule (4)
USE_DO_TO_ADD_EMPHASISw5Use do, does, or did to make a statement sound stronger
Add do, does, or did before the base verb when you want to stress that something is true or real. This often answers doubt, surprise, or disagreement.
KEEP_MAIN_VERB_IN_BASE_FORMw5Keep the main verb in the base form after do, does, or did
After emphatic do, does, or did, the main verb does not change. Do not add -s, -ed, or another tense ending to the main verb.
CHOOSE_DO_DOES_DID_BY_SUBJECT_AND_TIMEw5Choose do, does, or did from the subject and the time
Use does with he, she, it in the present, do with other subjects in the present, and did for all subjects in the past. Match the auxiliary to both person and time.
USE_FOR_CORRECTION_OR_CONTRASTw4Use emphatic do to correct someone or contrast with another idea
Use emphatic do when you push back against a negative idea or when you contrast two facts. It often appears in replies like I do know, He did call, or She does want to come.