Verb. "Manufactured" is the past tense and past participle of "manufacture". "Manufactured" can also be used as an adjective--manufactured home.
A technology (noun) There is no verb form.
No, not a noun, not a verb. The word 'efficient' is an adjective, a word that describes a noun.The noun form for the adjective efficient is efficiency.
Manufacture can be used as a verb and a noun. There is also the gerund manufacturing.
No, the word 'tighten' is not a noun. The word 'tighten' is a verb, a word for an action.The noun forms of the verb to tighten are tightener (a concrete noun as a word for a physical device) and the gerund, tightening (a concrete noun as a word for a physical act).
The noun forms for the verb to replace are replacement and the gerund, replacing.
The noun 'is' is a verb, a form of the verb 'to be'. The verb 'is' functions as an auxiliary verb and a linking verb.
No, it is a verb or a noun (to go around, to surround; a round shape). The adjective form is circular.
noun
A roar is a noun. To roar is a verb.
Training is a noun and a verb. Noun: e.g. activity of acquiring skills. Verb: present participle of the verb 'train'.
Has is a verb; it is not a noun. It is the third person singular of the verb to have. It functions as a helping verb as well, but it is not a noun.
An agent noun is a word derived from a verb form. Some examples are: The noun driver from the verb 'to drive'. The noun baker from the verb 'to bake'. The noun worker from the verb 'to work'. The noun helper from the verb 'to help'.
is wrap a noun or verb
It is neither a noun or a verb.
Noun. Photosynthesizing is a verb.
Is plan a noun or verb
Noun. Adjust is a verb.