FUNCTION OF NOUNS

SUBJECT
The house on the corner belongs to my uncle.
(House is the head word of the subject the house on the corner)

OBJECT OF VERB:
- direct object. My husband sells expensive Chinese antiques. (Antiques is the head word of the direct object expensive Chinese antiques.)
- indirect object. My uncle sold that rich couple some expensive antiques. (Couple is the head word of the indirect object that rich couple. Indirect objects are used after verbs like bring, buy, give, make, owe, pay, sell, send, teach, write.)

OBJECT OF PREPOSITION: (in a prepositional phrase)
The price of those antiques is very high. (Antiques is the head word of the object of the preposition those antiques. Some common prepositions are in, of, on, at, by, for, about, from, to, after.)

COMPLEMENT:
- Subjective complement.- My uncle is the richest man in town (Man is the head word of the subjective complement the richest man in town. Subjective complements appear after verbs like be, seem, appear, remain, become.)
- Objective complement.- I consider my uncle a very fortunate man. (Man is the head word of the objective complement a very fortunate man. Objective complements are used after verbs like appoint, consider, elect, name, nominate, select, choose.)