Who is a subject; it does things. Whom is an object; things are done to it.

Comprise means to contain. Compose means to make up.

Less is used with mass nouns and fewer with count nouns. Less is also used with singular nouns.

Farther is used for literal distances and further for metaphorical ones and in the sense of “more.”

The pronoun “I” is subjective, meaning it is always used as the subject of the sentence or clause. The pronoun “me” is objective; it is used to receive action from the subject or to be the object of a preposition.

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