Necessary is not a verb and does not have participle forms.
The word 'needed' is the past participle, past tense of the verb to need.The word need is also a noun form, a singular, common abstract noun; a word for circumstances in which something is necessary; a necessity.The noun form for the verb to need is needing.
The complete verb is 'are searching'; are is the auxiliary verb and searching is the main verb.
a verb
The verb form is discover.
The verb form is to necessitate.
The verb form is to necessitate.
no it is not...
Necessary is not a verb and does not have participle forms.
The adjective form of necessity is necessary.
Help is a verb - as in to give what is necessary to accomplish a task
Yes, this is necessary.
It's an adjective.
Yes, "is" is a linking verb used to connect the subject of a sentence to a predicate nominative or adjective. It helps to clarify the relationship between the subject and the complement in a sentence.
Overreacted is a verb. It's the past tense of overreact.
Finance is both a noun: The project will only go ahead if they can raise the necessary finance. and a verb: The project was financed by grants.
As a verb e.g. " It was necessary to recalculate the expense budget " .