What you'll learn
By the end of this lesson, you'll be able to use stressed auxiliaries (do, does, did, can, will, have) for emphasis and contradiction.
When do I use it?
When you speak, you can STRESS the auxiliary to add emphasis. In writing, use italics or the words "really"/"do":
- Contradicting: "You don't like it? I DO like it." (not the opposite)
- Confirming strongly: "She DOES work here — I've seen her."
- Emphatic advice: "You DID lock the door, didn't you?"
Normally "I like it" has no auxiliary — but to add emphasis, add do/does/did.
How do I form it?
do / does / did + base verb (present/past emphasis) modal / have + emphasis
- I do understand your point.
- She does play the piano, actually.
- He did finish the project on time.
- We will win, I promise.
- You have grown so much!
Common mistakes for Spanish speakers
Spanish adds "sí que" for emphasis ("sí que me gusta"), which speakers translate literally as "yes I like it" — losing the strength. The English trick is the stressed auxiliary: "I DO like it". Do not use the auxiliary for emphasis with "to be" or modals (they already have one — just stress it): "I DO am tired" is wrong; it's "I AM tired". And do not add "do" twice: "She does plays" is wrong.
Add do/does/did before the base verb when you want to stress a normal verb: "I DO like it."
Practice
Multiple Choice
B2Which sentence emphasises that you really like it?
Fill in the Blank
B2She does here — I saw her yesterday.
Hint: does + base verb, no -s.
Find the Error
B2Sentence Transformation
B2Task: Add emphasis with the auxiliary
Hint: Add 'did' + base verb to stress it.
Practice Speaking
Apply what you've learned in a real conversation with AI feedback.
Level: B2