The word sick is an adjective; he is a sick man.
Sicken is the verb form of sick. "That politician's actions sicken me."
The verb is "is". "he" is a pronoun, taking the place of a noun , and "sick" is an adjective, describing the subject,"he".
They were sick.
Sicken is the verb form of sick. "That politician's actions sicken me."
Sick isn't a verb but an adjective. Therefore there is no past tense of sick. However, you can simply say "was sick"
No, it's an adjective.
In that sentence, felt is a linking verb. It connects the subject, Rosemary, to the predicate adjective, sick.
No. All forms of to be (am, is, are, was were, been) are linking verbs, but there are also others, such as to stay, remain, grow.
In this sentence, "felt" is an action verb. An action verb shows the action that the subject (John) is performing, which in this case is feeling sick after lunch.
It is an irregular verb.
A linking verb
A linking verb.