Conhecendo todos os verbos auxiliares no inglês

Os verbos auxiliares são conjugados de acordo com o sujeito da sentença. Veja alguns exemplos de verbos auxiliares:

 

Tom has lived in Boston for twenty years.
They didn't come to the party last night.
I was cooking dinner when you telephoned.
What are you doing tomorrow afternoon?

Knowing correct auxiliary verb usage is key to tense usage. Every tense takes an auxiliary form of the verb. There are three exceptions to this rule:É fundamental você saber qual é o auxiliar do tempo verbal em uso, já que na afirmativa, é comum o verbo auxiliar não aparecer. Como por exemplo:

1. Simple present positive: She works at a bank.
2. Simple past positive: He bought a new TV last week.
3. Positive imperative statements: Hurry up!

Normalmente nas "Short Forms" ou "Short Answers" você usa apenas o verbo auxiliar:

• Yes / No answer short forms:Do you live in England? - No, I don't.
  Has she been to Paris? - Yes, she has.
  
• Question tags:They enjoy learning English, don't they?
  He won't agree with me, will he?
  
• Positive agreement / inclusion:I went to the beach last weekend. - So did I.
  I'm working very hard at the moment. - So is she.
  
• Negative agreement / inclusion:They haven't worked here long. - Neither have I.
  We won't be able to come next week. - Neither will I.

Vamos dar uma passagem sobre todos os auxiliares: DO / DOESUsado no Present Simple nas Interrogativas e Negativas:What time does he get up?
They don't drive to work. They take the bus.

DIDUsado no Past Simple nas Interrogativas e Negativas:When did they arrive yesterday?
He didn't finish his homework last week.

IS / ARE / AMUsado no Present Continuous e no Futuro com o "Going to":They are working hard at the moment.
She is going to study medicine at university. WAS / WEREUsado no Past Continuous:I was watching TV when you arrived.
What were they doing while you were cooking dinner? HAVE / HASUsado no Present Perfect e no Present Perfect Continuous:How long have you lived here?
I've been working since seven this morning. HADUsado no Past Perfect e no Past Perfect Continuous:He had eaten by the time I arrived.
She had been studying for two hours when he finally telephoned.

WILL / WON'TUsado no Futuro com Will:What will the weather be like tomorrow?
He won't understand.

Confira se você entendeu. Escreva as respostas num papel e depois confira logo abaixo. Se errou muito, leia as explicações de novo e tente outra vez. Se acertou, mas foi com consulta, tente outra vez sem olhar. Mas não decore, e sim "entenda".

1. He _____ come to school yesterday because he was ill.
2. She _____ been working in the garden since two this afternoon.
3. He _____ finished his homework by the time arrived.
4. I'm afraid I _____ be able to come to the party. I have to study.
5. You've visited London, _____ you?
6. They _____ going to attend a meeting in Chicago next week.
7. Why _____ you buy that?! It's ugly!
8. She _____ often go to the movies.
9. He _____ watching TV. He's doing his homework at the moment.
10. They _____ been playing tennis for two hours.
11. I don't like country music. - Neither _____ I.
12. They won't come to the party, _____ they?
13. Mom _____ been working for two hours when I telephoned.
14. I think they are fantastic! - So _____ she.
15. What _____ they doing?
16. Mary hasn't enjoyed herself so much for a long time. - Neither _____ I.
17. Mike _____ go on vacation last summer. He was too busy.
18. He's studying Russian this semester, _____ he?
19. I _____ just been to the bank.
20. How long _____ you been working for this company?

Respostas:
Answers: Auxiliary Verb Quiz

1. He didn't come to school yesterday because he was ill.
2. She has been working in the garden since two this afternoon.
3. He had finished his homework by the time arrived.
4. I'm afraid I won't be able to come to the party. I have to study.
5. You've visited London, haven't you?
6. They're going to attend a meeting in Chicago next week.
7. Why did you buy that?! It's ugly!
8. She doesn't often go to the movies.
9. He isn't watching TV. He's doing his homework at the moment.
10. They've been playing tennis for two hours.
11. I don't like country music. - Neither do I.
12. They won't come to the party, will they?
13. Mom had been working for two hours when I telephoned.
14. I think they are fantastic! - So does she.
15. What are they doing?
16. Mary hasn't enjoyed herself so much for a long time. - Neither have I.
17. Mike didn't go on vacation last summer. He was too busy.
18. He's studying Russian this semester, isn't he?
19. I've just been to the bank.
20. How long have you been working for this company?