Gramática de Frases envolvendo Past e Present Perfect

Olá Galera,

Venho me dedicando ao estudo do Present Perfect e do Past Perfect e tentei fazer algumas frases para poder praticar. Tive dúvidas em algumas e até cheguei a usar o google tradutor para conferir mas não confio muito nessa ferramenta. Ficarei grato pela ajuda.

Frases:
Eu tenho sido mais feliz agora ( no sentido de ,"sou mais feliz agora do que antes" ) = I have been happier now
Eu seria mais feliz do que agora = I would be happier than now
Eu teria sido mais feliz = I would have been happier
Se eu tivesse sido mais estudioso = if I had been more studious (past perfect)
Eu era feliz e não sabia = ?

É isso experts, estão certas?

Regards,

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Avatar do usuário Marcos 3345 4 17 71
Hello Matheus.

I see no problem with your sentences. And about the sentence:

Eu era feliz e não sabia= ?


I would translate it to: I used to be happy but I didn't know.

Well, how about a quick review, uh? Let's go!

We use the past simple tense to talk about an action or a situation - an event in the past. The event can be short or long.

Short: We did not hear the telephone.
Long: The Jurassic period lasted about 62 million years. (Too long, uh?)

Notice that it does not matter how long ago the event is: it can be a few minutes or seconds in the past, or millions of years in the past.

- the event is in the past
- the event is completely finished
- we say (or understand) the time and/or place of the event

Examples:

- I lived in that house when I was young.
- He didn't like the movie.

*In general, if we say the time or place of the event, we must use the past simple tense; we cannot use the present perfect.

Now in the present perfect there is always a connection with the past and with the present. There are basically three uses for the present perfect tense:

- experience: He has lived in Bangkok.
- change: I have bought a car.
- continuing situation: I have worked here since June.

Small note: Americans do not use the present perfect tense so much as British speakers. Americans often use the past tense instead. An American might say "Did you have lunch?", where a British person would say "Have you had lunch?"

Well, that's the basic concept for those two tenses. You may check out some more info about them on:

past-perfect-e-present-perfect-conceitos-basicos-t1207.html
http://www.englishclub.com/grammar/verb ... erfect.htm
http://www.englishclub.com/grammar/verb-tenses_past.htm

That's all.
See ya! :)
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