Non-Finite Clause 

Nonfinite clauses tend to express less information than matching finite clauses

•Introduced by to  or for to.

–I want [to buy the cheese].

–[To err] is human.

–[For him to err] is terrible.

•Can also appear without to:

–I heard him break the cookie jar.

–He made me eat my spinach.

•Can be nominal, adverbial (I bought it [to surprise you].), or adjectival (He was the last person 


She feels sick.

I was watching TV.

In the first example, we have the present tense verb form feels. We could change to past tense: She felt sick.

In the second example, the verb phrase was watching contains the past tense form was. We could change to the present tense: I am watching TV.

These are called finite clauses because they contain finite verbs: verbs in the present tense or past tense form.