NOUN

It is the subject of the sentence.

It is the direct object noun phrase.

It is a gerund phrase functioning as a noun phrase.

'My best friend' acts as a noun phrase.

It acts as the direct object of 'told'.

'Book' and 'table' are nouns.

It serves as the subject of the sentence.

'The tall building' is a noun phrase.

It acts as the direct object of the verb 'know'.

The entire group functions as the direct object.

It acts as the subject of the sentence.

'Blue sky' consists of an adjective and a noun, functioning as a noun phrase.

It is the object of the verb 'asked'.

Both 'Honesty' and 'policy' are nouns.

'To leave' functions as an infinitive phrase modifying 'decision'.

'What you like' is a noun clause serving as the object.

Both 'His massive ego' and 'a problem' are noun phrases.

It acts as the subject of the sentence.

'The old man' acts as the subject and functions as a noun phrase.