*how must a verb agree with its subject?
* what is the difference between perfect and continuous tenses?
* why are auxiliary verbs sometimes called ‘’ verbs?
*most infinitives begin with which word?
someone me pls tysm

1. A verb and a subject must both be plural or singular.

2. Perfect tense is used to indicate a completed action or condition. Continuous tense is used to indicate an action that is, was, or will be in progress at a certain time.

3. Auxiliary verbs are sometimes refereed to as helping verbs because they help form the various tenses, moods, and voices of other verbs.

4. Most infinitives will begin with the word to.