1   O tempo verbal present continuous (ou present progressive) tem as seguintes formas:     na afirmativa:

Full Form		Short Form		Significado
I am doing		I'm doing		eu estou a fazer (1)
you are doing		you're doing		tu estás a fazer (1)
he is she is it is	doing	he's she's it's	doing	ele(a) está a fazer (1)
we are doing		we're doing		nós estamos a fazer (1)
you are doing		you're doing		vós estais a fazer (1)
they are doing		they're doing		eles(as) estão a fazer (1)

(1) A tradução (para a língua portuguesa) da conjugação deste tempo verbal present continuous é apenas um dos exemplos possíveis entre vários, estando este tempo verbal dependente do contexto de uma frase.     na negativa:

Full Form		Short Form		Short Form
I am not doing		I'm not doing
you are not doing		you're not doing		you aren't doing
he is not she is not it is not	doing	he's not she's not it's not	doing	he isn't she isn't it isn't	doing
we are not doing		we're not doing		we aren't doing
you are not doing		you're not doing		you aren't doing
they are not doing		they're not doing		they aren't doing

na interrogativa:	na interrogativa negativa:

Full Form am I doing? are you doing? is he is she is it doing? are we doing? are you doing? are they doing?

Full Form Short Form am I not doing? aren't I doing? are you not doing? aren't you doing? is he not is she not is it not doing? isn't he isn't she isn't it doing? are we not doing? aren't we doing? are you not doing? aren't you doing? are they not doing? aren't they doing?

nas respostas breves:

Full Form Yes, I am. you are. he/she/it  is. we are. you are. they are.

Full Form / Short Form No, I am not / 'm not. you are not / 're not / aren't. he/she/it  is not / 's not / isn't. we are not / 're not / aren't. you are not / 're not / aren't. they are not / 're not / aren't.

 

2   Como podemos verificar no ponto anterior, o tempo verbal present continuous forma-se da seguinte maneira:   BE + -ING   onde BE = verbo auxiliar be no present tense (ex. am, is, are) e -ING = verbo principal terminado em -ing (ex. doing, reading)     3   Veja as regras ortográficas dos verbos terminados em -ing.     4   Emprega-se o tempo verbal present continuous para descrever:     (a) acções que decorrem no momento em que se fala:

Example	Significado
Don't disturb her. She is studying at the moment.	Não a incomode. Ela está a estudar neste momento.
I can't go out now. It's raining a lot.	Não posso sair agora. Está a chover muito.

(b) situações temporárias que decorrem nesta altura mas não necessariamente no momento em que se fala:

Example	Significado
John is teaching in Portugal this year.	O João está a dar aulas em Portugal este ano.
Where are you staying this week? In a hotel.	Onde é que estás hospedado esta semana? Num hotel.
I'm working for them for the time being.	Estou a trabalhar para eles por agora.

(c) planos pessoais num futuro próximo:

Example	Significado
He's going to England next month.	Ele vai para a Inglaterra no próximo mês.
I'm seeing the doctor on Thursday.	Vou ao médico na quinta-feira.
Mary is coming round to see me this afternoon.	A Maria vem ver-me esta tarde.

(d) hábitos ou acções repetidas (com um tom crítico):

Example	Significado
Why are you always shouting at me?	Porque é que estás sempre a gritar comigo?
He is constantly harassing her.	Ele está constantemente a importuná-la.