a noun that refers to people and to things that exist physically and can be seen, touched, smelled, heard, or tasted. e.g. dog, building, coffee, tree, rain, beach, tune Also called Helping Verbs. They are: be, do, have, will, shall, would, should, can, could, may, might, must, ought, etc.
e.g. I think I should study harder to master English.
illustrate where the verb is happening. It's usually placed after the main verb or object, or at the end of the sentence.
e.g. here, there, nowhere, everywhere, out, in, above, below, inside, outside, into
Adverbs that explain the level or intensity of a verb, adjective, or even another adverb.
e.g. almost, quite, nearly, too, enough, just, hardly, simply, so
A type of verb that indicates modality, i.e., likelihood, permission, ability and obligation.
e.g. will, would, can, could, may, might, must, should