Should

Nós usamos "should" para dar, ou pedir, conselho ou uma opinião no presente:

• "I have a terrible stomachache." "You should go to the doctor's."
• "I haven’t heard from my father." "You should call him."
• "She's not happy with the salary offered." "She shouldn't accept the job."

Formulário

Nós usamos "should" / "shouldn't" + infinitivo do verbo principal (sem "to")

Exemplo

I You He, She, It We They	should	do	more exercise.
		get	a new car.
	shouldn't (should not)	smoke.
		spend	so much money.

Should	I you he / she / it we they	get	more qualifications?
		wear	something different?

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Should have

Nós usamos "should have" para dar, ou pedir uma opinião no presente sobre algo que aconteceu no passado:

• "I had a terrible stomachache." "You should have gone to the doctor’s."
• "I didn’t hear from my father last week." "You should have called him."
• "She isn't happy with the salary she’s getting." "She shouldn't have accepted the job."

Formulário

Nós usamos "should" / "shouldn't have" + o particípio passado do verbo principal

Exemplo

I You He / She / It We They	should have	taken	a taxi.
	shouldn't have	written	that comment.

Should

I you he / she / it we they

have worked

overtime?

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Pratique

Dar ou pedir conselhos usando o verbo entre parêntesis:

.

1)

He    the position. (accept)

 

2)

You    mobile phones in the classroom. (not allow)

 

3)

   we    that we cheated? (admit)

 

4)

They    work early yesterday. (not leave)

 

Please submit the missing answers shown in red
 

Submit

Have to

"Have to" é usado para mostrar que uma pessoa é obrigada a fazer alguma coisa, geralmente por uma força externa, “have to” também pode ser usado para dar a sua opinião:

• You have to show your passport at passport control.
  (É a lei.)
• Jenny has to do homework every evening.
  (Seus pais disseram a ela para fazer sua lição de casa.)
• Tom had to work late last night.
  (Ele não havia terminado seu trabalho)
• You have to tell him!
  (Essa é a minha opinião(definida))
• You don’t have to eat that if you don’t like it.
  (Não estou obrigando você a comer)

Formulário

O presente simples de "have" + "to" + infinitivo (sem "to")
or
The past simple of 'have' + to + infinitive (without to)

Exemplo

I You We They	have to	leave the house early to catch the bus. care for the children.
He / She / It	has to
I You We They	don't have to	leave the house early to catch the bus. care for the children.
He / She / It	doesn't have to

Do	I you we they	have to	work on Saturday?
Does	he / she / it		attend the conference?

I You He / She / It We They	had to	leave the house early to catch the bus. care for the children.
I You He / She / It We They	didn't have to	leave the house early to catch the bus. care for the children.

Did

I you he / she / it we they

have to

work on Saturday? attend the conference?

Pratique

Dar ou pedir conselhos usando o verbo entre parêntesis:

.

1)

You    to the internet to send an email. (connect)

 

2)

Adrian    every weekend unless he wants to. (not train)

 

3)

   you    your passport at the border? (show)

 

4)

Amy    30 hours a week last year. (teach)

 

Please submit the missing answers shown in red
 

Submit

Must

"Must" também é usado para falar sobre obrigação e é usado em regras escritas e instruções:

• You must submit your proposal by noon on 12th July.
• You must not use a calculator during the exam.

"Must" também é usado para dar uma forte recomendação:

• You must tell him before it's too late.
• You mustn't be late for work on your first day.

Formulário

"Must" ou "must not" ("mustn't") + infinitivo do verbo (sem "to")

Exemplo

I You He / She / It We They	must mustn't	report	the theft to the police immediately.
		forget	to transfer the money.

Must

I you he / she / it we they

go?

Enquanto as perguntas com "must" são gramaticalmente corretas, é mais comum nos dias de hoje usar "have to" em perguntas.

Não há forma passada do "must" para obrigação:

• We had to show our passports at the border.
• We weren’t allowed to use calculators in the exam.
  Or, we couldn’t use calculators in the exam.

Pratique

Dar ou pedir conselhos usando o verbo entre parêntesis:

.

1)

You    late for the train. (not be)

 

2)

We    their wedding anniversary. (celebrate)

 

3)

You    the application form in black ink. (complete)

 

4)

He    his dog chew the furniture. (not let)

 

Please submit the missing answers shown in red
 

Submit

Pratique ainda mais

Escolha a resposta correta para completar a frase: a, b, c ou d.
.

1)

You ____ remember to close the windows when you leave the house.
 

don't have to

mustn't

shouldn't

must

 

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2)

You ____ eat fast food every day. It’s very bad for you.
 

don't have to

must

shouldn't

have to

 

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3)

Maria ____ the operation but she was too scared. Now she’s very ill.
 

should have had

should have

must have had

must have

 

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4)

Juan ____ visit Prague once a month for meetings, but he enjoys it.
 

have to

has to

should have

should

 

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5)

You ____ perform that song. It’s offensive.
 

don't have to

mustn't

should

should have

 

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6)

You ____ come with me. I’m happy to go alone.
 

mustn't have

should have

must

don't have to

 

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Please submit the missing answers shown in red
 

Submit