`To’ Infinitive

 

to'-infinitives:

Verbs with to-infinitives

We use the to-infinitive after certain verbs(verbs followed by to-infinitive), particularly verbs of thinking and feeling:

choose decide expect forget

hate hope intend learn

like love mean plan

prefer remember want would like/love

They decided to start a business together.
Remember to turn the lights off.

and verbs of saying:

agree

promise

refuse

threaten

We agreed to meet at the cinema.
Promise to call me every day.

Some verbs are followed by a direct objectand then the to-infinitive:

advise ask encourage expect

intend invite order persuade

remind tell want warn

would like/love would prefer

He encouraged his friends to vote for him.
Remind me to give Julia a call.

Infinitive of purpose

We also use the to-infinitive to express purpose (to answer why?):

He bought some flowers to give to his wife.
He locked the door to keep everyone out.

We can also express purpose with in order to and in order not to:

We started our journey early in order toavoid the traffic.
They spoke quietly in order not to wake the children.

or so as to and so as not to:

We started our journey early so as toavoid the traffic.
They spoke quietly so as not to wake the children.

Adjectives with to-infinitives

We use the to-infinitive after certain adjectives:

able unable anxious

due eager keen

likely unlikely ready

prepared willing unwilling

Unfortunately, I was unable to work for over a week.
I'm really tired. I'm ready to go to bed.

Sometimes the to-infinitive gives a reason for the adjective:

amazed delighted disappointed

glad happy pleased

proud relieved sad

sorry surprised unhappy

We were happy to come to the end of our journey.
(= We were happy because we had come to the end of our journey.)
John was surprised to see me.
(= He was surprised because he saw me.)

 

We often use it + be followed by an adjective to give opinions:

clever difficult easy

foolish hard kind

nice possible impossible

right wrong silly

It's easy to play the piano, but it's verydifficult to play well.
He spoke so quickly that it was impossible to understand him.

We use the to-infinitive with these adjectives to give opinions about people:

clever foolish

kind nice

right wrong

silly

She was right to complain about that hotel.
You were clever to find the answer so quickly.

We use the preposition for to show who these adjectives refer to:

difficult

easy

hard

possible

impossible

It was difficult for us to hear what she was saying.
It is easy for you to criticise other people.

With the other adjectives, we use the preposition of:

It's kind of you to help.
It would be silly of him to spend all his money.

Gramática:

Put the words and expressions in the correct order to make sentences.

1- What time due your flight to arrive?  Is.

Answer: 

2- are another pay rise to get we unlikely this year.

Answer: 

3- Her exams hear was she had passed that all to Emmy relieved.

Answer:

4- A Good Job it hard to find is nowadays.

Answer:

 

5- Is to buy possible it online? Train tickets.

Answer:

6- Was wrong car  George to borrow his fathers without asking.

Answer: 

7- Foolish will be to think you are everything that ok

Answer:

8- To reduce is it prices any further. impossible for the school it

Answer:

9- For me  in public. Been difficult it’s always  to speak  

Answer: 

10- Us of you it was to invite very nice to your party 

Answer: 

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