3. An adjective clause may also be used to modify the noun which is used in the predicate complement, as:
- That was the book which I enjoyed.
In this sentence the clause, which I enjoyed, is an adjective clause modifying the noun book, which is used as the predicate complement with the copulative verb was.
4. An adjective clause may also be used to modify the noun which is used as the object of a preposition, as:
- He arrived on the train which was late.
Here the adjective clause, which was late, modifies the noun train, which is the object of the preposition on.
Sometimes it is a little difficult to discover these adjective clauses, for frequently the connecting word is omitted, as for example:
- I could not find the man I wanted.
In this sentence, the pronoun whom is omitted; the complete sentence would read:
- I could not find the man whom I wanted.