3.150 commenting on behaviour

If you want to say that someone shows a particular quality when they do something, you can use a 'to'-infinitive after a descriptive complement.

• Most people think I am brave to do this.
• I think my father was a brave man to do what he did.

The complement can be an adjective, or it can be a noun group consisting of 'a' or 'an' followed by an adjective and a noun.