We usually put the marker to before the infinitive. But in some cases the infinitive is used without to.

Test your understanding of infinitives with this grammar exercise. Each question is followed by two suggested answers. Choose the correct one.

We have already learned about sentence patterns consisting of just one noun and an intransitive verb. Sometimes we also add an adverb to this pattern.

Some verbs are followed by adverb particles. In grammars these are often called phrasal verbs. Examples are: put on, take off, give away, bring up, call in etc.

The object is always a noun or its equivalent.

He built a house. (Here the object is a noun.)

I love him. (Here the object is a pronoun.)

The attribute of a subject can be an article, an adjective, a noun in the possessive case or a possessive adjective.

Study the following sentences.

Children play football.

Fill in the blanks with appropriate participle forms.

1. The boy cried, ………………………….. that he would be whipped. (thinking / thought)

2. …………………………. by the rain, we took shelter under a tree. (driven / driving)

Primary auxiliary verbs exercise

Fill in the blanks with appropriate forms of be, have and do.

1. ………………………….. you know where John lives?

2. She ………………………….. look rather shabby.