Present perfect simple
Formula: S + have/has + past participle
• In an action that began in the past, but we don’t know exactly when.
Ex.:
- I have (already) been to London.
- Have you studied for the test?
- They haven’t finished their Christmas play (yet).
Expressions to use:
-Yet (end of the sentence in negative),
-ever,
-never,
-just,
-already (after the verb have/has),
-since,
-for,
-recently (begin of the sentence)
sexta-feira, 27 de novembro de 2009
Passive voice
How to do it:
- Sublinhar o verbo
- Identificar o tempo verbal
- Aplicar a regra: to be + past particle
Ex:
● O Pedrinho come a maçã.
A maçã é comida pelo Pedrinho.
● O Tiaguinho comeu o bolo.
O bolo foi comido pelo Tiaguinho.
● Inês bakes a cake everyday.
A cake is baked by Inês everyday.
● Joana cleaned the house. (past simple)
The house was cleaned by Joana.
Modal verbs
A. Ability
● Can / can't / cannot / could (Present /future)
● Could / couldn't / could not (Past)
Ex.:
- She can play piano.
- They can’t study alone.
B. Possibility
● May / might / could / may not / might not / could not / couldn’t (Present/future)
● Might have / may have / could have (past)
Ex.:
- Jane might go to the party.
- Jess may win the competition.
C. Permission
● Can /can’t / may/ may not
Ex.:
- Teacher, sorry I'm late. May I come in?
- Dad, can I go to the party?
D. Certainty/ Obligation
● Must / mustn't / must not (present / future)
● Must have (past)
Ex.:
- You must obey the school's rules.
- Tomorrow you have a Maths test. You must study!
E. Advice
● Should / shouldn't (present/ future)
● Should have (past)
Ex.:
- I think you should talk to them.
- Should he go to the doctor?
A. Ability
● Can / can't / cannot / could (Present /future)
● Could / couldn't / could not (Past)
Ex.:
- She can play piano.
- They can’t study alone.
B. Possibility
● May / might / could / may not / might not / could not / couldn’t (Present/future)
● Might have / may have / could have (past)
Ex.:
- Jane might go to the party.
- Jess may win the competition.
C. Permission
● Can /can’t / may/ may not
Ex.:
- Teacher, sorry I'm late. May I come in?
- Dad, can I go to the party?
D. Certainty/ Obligation
● Must / mustn't / must not (present / future)
● Must have (past)
Ex.:
- You must obey the school's rules.
- Tomorrow you have a Maths test. You must study!
E. Advice
● Should / shouldn't (present/ future)
● Should have (past)
Ex.:
- I think you should talk to them.
- Should he go to the doctor?
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