its a pronoun
"Could be" is a verb phrase that combines the modal verb "could" with the main verb "be." It functions as a verb in a sentence.
"Could" is an auxiliary verb. Together with "go" it forms a conditional tense verb phrase. "Not" is an adverb, probably the most important of all adverbs, because it negates the normal meaning of the verb or verb phrase that "not" modifies.
Treated is a regular verb.
Could've is a contraction of "could" and "have". They are both verbs.
The word could've is a contraction, a combination of the verb forms 'could' and 'have'. The word could've functions as an auxiliary (helper) verb; for example:You could have come with us. Or, You could've come with us.When 'could have' is used as the main verb (transitive), could as the auxiliary and have as the main verb, the contraction isn't used:You could have cake or you couldhave pie.
The verb - is - is a present tense be verb so the tense of this sentence is present. Also because there is only one verb you could say it is present simple.
A linking verb
A linking verb.
It is an irregular verb.
The verb appear can be a linking verb or an action verb.
An auxiliary verb
the infinative
a regular verb.
Is becomes a verb
It is a regular verb
Be is a state of being verb.
"Could be" is a verb phrase that combines the modal verb "could" with the main verb "be." It functions as a verb in a sentence.