No. You cannot say for example: I five you or have you fived yet. So five is not a verb
Wait is a noun and a verb. Noun: There is a forty-five minute wait. Verb: We waited for forty-five minutes.
Five and five equal ten.
"They" is the subject and "stopped" is the action verb.
report
Was is always a verb. In that example, it's a linking verb.
The given sentence has got two clauses: First one is a main or principal clause, "Elena thinks" where the subject 'Elena' is first person singular which agrees with the verb 'thinks'. Second clause is a subordinate one: "five dollars are a lot of money". In this, 'five dollars', even though apparently a plural noun does work as singular noun, is the subject of verb 'are'. As 'a lot of money', the object of the verb 'are', is considered singular since the article 'a' makes it a singular entity, the verb 'are' does not agree with it. Actually the verb 'is' should be substituted for 'are' ("Elena thinks [that] five dollars is a lot money"). Hope this explanation clears the confusion.
acted aimed aired
there are 8 not 5: am, is, are, was, were, be, being, been
No, 'must is an auxiliary verb (helper verb) used to qualify a main verb. A linking verb is a verb that shows equality (is) or change (became). Examples:Linking verb: Jason is my brother. (Jason = brother) The sky turned dark. (sky -> dark)Auxiliary verb: I must take the five o'clock bus. (have to take) I could take the five o'clock bus. (it's possible to take)
there are 12 verb tenses not only five. present, past, future. simple-- continuous--perfect-- perfect continuous.
Tasted is a verb. It's the past tense of taste.
Me gusta hacer la tarea.