The present participle of a verb, the -ing word, is also used as a noun called a gerund. The present participle can also be an adjective. Examples:
Verb: We were swimming at the community center.
Noun: Swimming is my favorite extra curricular activity.
Adjective: The swimming pool is closed today.
There are also a number of words that act as both a verb and an noun; for example:
I won fifty dollars on one roll of the dice. Or, You can dice the onions for me.
I'll have my roll with butter and jam. Or, I won fifty dollars on one roll of the dice.
Don't jam everything in together, you'll crush the berries. Or, I'll have my toast with jam.
The noun form of the verb "noun" is "noun-ness" or "nominalization."
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.
It is neither a noun or a verb.
Noun. Photosynthesizing is a verb.
Is plan a noun or verb
Noun. Adjust is a verb.
"bay" is a verb or a noun.