Learning English

Verb patterns
In English when two verbs are used back to back, the first verb tells the second verb what form to be. This is called a verb pattern

3 types
There are three basic types of verb pattern:
1. The full infinitive (with to): to + verb
2. The bare infinitive (no to): verb
3. –ING form: verbing

e.g. 
1. to play
2. play
3. playing

Some verbs
There are many verbs in English which have to be followed by a full infinitive:
Agree, want, hope, expect, refuse.

• I agree to go
• I wanted to go
• I will refuse to go

There are many verbs in English which have to be followed by a bare infinitive. A large number are called modal verbs:
Can, can't, will, won't, must, mustn't, should, shouldn't, would, wouldn't, may, might, have to, don't have to.

• I must go
• She will go
• He may go

In both cases these verb patterns cannot be changed and must be learnt as they are.

After adjectives
generally, if we wish to use a verb after an adjective, we use a full infinitive:

• It's good to see you
• It's important to remember your keys

Infinitive of purpose
We can use a full infinitive at the end of a clause to explain why we are doing the thing we are doing:

• I'm going home to sleep
• I want a dog to play with