138k views
1 vote
When using the perfect tenses of verbs, it's necessary to add a/an A. irregular verb. B. infinitive. C. helping verb. D. suffix.

2 Answers

2 votes
When using the perfect tenses of verbs, it’s necessary to add a C. Helping verb
User Ben Amada
by
6.1k points
3 votes
The answer is Helping verb. 
User Gary Kerr
by
6.6k points