Previous. Say, “previously to,” not “previous to.” Also, do not say, “He was too previous”——it is a pure vulgarism.
Providing. Say, “Provided he has money,” not “Providing.”
Propose. Do not confuse with purpose. One proposes a plan, but purposes to do something, though it is also possible a propose, or make a proposition, to do something.
Quite. Do not say, “Quite a way,” or “Quite a good deal,” but reserve the word for such phrases as “Quite sure,” “Quite to the edge,” etc.
Raise; rise. Never tell a person to “raise up,” meaning “raise himself up,” but to “rise up.” Also, do not speak of “raising children,” though we may “raise horses.”
Scarcely. Do not say, “I shall scarcely (hardly) finish before night,” though it is proper to use it of time, as in “I saw him scarcely an hour ago.”
Seldom or ever. Incorrect for “seldom if ever.”
Set; sit. We set the cup down, and sit down ourselves. The hen sits; the sun sets; a dress sits.
Sewerage; sewage. The first means the system of sewers, the second the waste matter.
Some. Do not say, “I am some tired,” “I like it some,” etc.