We use do and does for questions with regular verbs but not for questions with forms of to be or modal verbs like can, must, might, should. Do/does is placed before the subject of the sentence and the base form of the verb follows. Questions with what, when, where, why, and how use do/does before the subject. The present perfect tense refers to an event that occurred in the recent past or has a connection to the present. It uses the formula of subject + to have + past participle.

1. We usually use do and does for questions
We DON'T use Do or Does in questions that have the verb To
Be or Modal Verbs (can, must, might, should etc.)
Do does
Do/Does Subject Verb* The Rest of the sentence
Do I / you / we / they have / buy
eat / like etc.
cereal for breakfast?
Does he / she / it

2. Sample Questions
Short Answer
(Affirmative)
Short Answer
(Negative)
Do you speak English? Yes, I do. No, I don't.
Do I need a dictionary? Yes, you do. No, you don't.
Do you both speak English? Yes, we do. No, we don't.
Do they speak English? Yes, they do. No, they don't.
Does he speak English? Yes, he does. No, he doesn't.
Does she speak English? Yes, she does. No, she doesn't.
Does it have four legs? Yes, it does. No, it doesn't.
Question Word Do/Does Subject Verb
What do you have for breakfast?
What does she have for breakfast?
Where do you live?
When do you study?
How do you spell your name?

3. Present perfect
Es un tiempo verbal que se refiere a un evento que paso en el pasado recientemente o que mantiene una relacion con el presente
En el caso del presente simple no se maneja un tiempo especifico ya que si se hiciera se manejaria como pasado simple ejemplo
I have sold my car
I sold my car this morning
formula
Subjt + to have + past participle
I have seen a ghost
He has seen a ghost
NEGATIVE
You have not studied for the exam
She has not cleaned her room
QUESTION
Have you bought a car?
Has he broken the window?
Have to + subj + verb in past participle

4. • Write five things you have accomplished at this time of your life
• I have never ever _________eaten
• Broken kissed
• Fought
• Gone
• Done
• Seen
• been