1. Using the right pronoun.
Use I when subject of the verb; me when the object of the verb or preposition.
Wrong: Jim and me went to . . .
Right: Jim and I went to . . .
Wrong: A gift for Jim and I . . .
Right: A gift for Jim and me
Wrong: Tom hit Jim and I . . .
Right: Tom hit Jim and me . . .
2. When referring to a person, use who. When referring to a thing, use that.
Wrong: She was the girl that . . .
Right: She was the girl who . . .
3. When the object of a preposition (to, in, on, at, for, under, between, etc), who gives way to whom.
Wrong: For who the bell tolls.
Right: For whom the bell tolls.
4. Always use a comma after an introductory clause.
Example: Around the same time everybody left, he sat alone in the kitchen.
5. Subject and verb agreement.
Wrong: The television and its stand is not stable.
Right: The television and its stand are not stable.
6. Adverbs modify verbs and adjectives. Be aware that they generally take the –ly form.
Correct: She screamed so loudly the glass broke.
Correct: His clothes hung loosely on his thin frame.
7. ! Choose your words to communicate a sense of urgency rather than relying on the exclamation point.
8. Too, to. Too means in addition, also, as well. To usually indicates a direction toward something or functions as a preposition.
The boy threw the ball to his father.
I’m going to stop at the grocery store too.
9. Lie, lay. Lie refers to a state of rest. Lay requires an action and an object of that action.
The girl lay the book on the table.
I desperately want to lie on the sofa.
10. Always use anymore with a negative.
Wrong: He’s always doing the wrong thing anymore.
Right: He doesn’t do the right thing anymore.