No. The word must is an auxiliary verb indicating a requirement or necessary action. It is also rarely a noun (a must is something required or mandatory).
curve is an action verb
Yes, an action verb.
No it is a state of being.
No, the word took is not an adverb.The word took is a verb, because it is an action.
By definition, a "transitive" verb (one that has an object) must be an action verb.
Can is a helping verb. It must be paired with an action verb to make a complete thought. For example: "She can swim fast." Here, the action verb is swim.
It is an action verb.
There is no direct object in that sentence. Felt is being used as a linking verb, not an action verb. The verb must be an action to take a direct object.
a verb is an action word hence there is a verb for action and a linking verb in the sentence for example an opera singer sound good.
If it acts alone, it is an action verb (doing verb) meaning to possess.e.g. I have the key.If it acts with another verb, it is a helper verb.e.g. I have received the key.*Note: "have to" is a construction using the infinitive of a verb, where the verb have means "must" (I have to go = I must go). When not used in the present tense, it carries the same connotation of requiredness (I had to leave, I will have to quit).
The main verb is 'planning', the helping verbs are must and be. The verb 'must' expresses the opinion that it's logically very likely. The verb 'be' expresses that it's happening or taking place.
"Must have caught" is in the past perfect tense, indicating an action that was completed before another action or point in the past.
In order to have a direct object, a sentence must include an action verb that directly affects and is followed by a noun or pronoun that receives the action of the verb. This noun or pronoun is the direct object of the sentence.
began is an action verb, not a linking verb.
"Sent" is an action verb. It shows an action, such as "she sent an email."
A helping verb is an informal term for an auxiliary verb, which combines with a main verb to help it express tense, mood and voice.The primary helper verbs are to be (is, was, will be), to have (has, had), and to do (do/did).Other modal verbs include do/did, can/could, may/might, will/would, shall/should, must, and ought to.*(have is alone as an action verb when it means possess, as is do when it refers to another action)An action verb is a verb of doing. Something is done or experienced.e.g. walk, talk, see, bring, moveA linking verb is not an action verb. It connects things or characteristics.e.g. is, becomes, seems, feels (is)