Which of the following statements is not correct with reference to English grammar?
1
In inverted sentences the verb precedes the subject.
2
The verb of a subject changes according to the intervening expressions that follow a subject.
3
When the subject of an adjective clause is a relative pronoun, the verb in the clause must agree with the antecedent of the relative pronoun.
4
In a sentence containing both an auxiliary verb and a main verb, the auxiliary verb manifests the tense, person and number of the subject.