Mutual.—Does not mean common, but reciprocal. “We may have a common friend, but a mutual dislike”; that is, a dislike for each other.
Myself.—Not to be used for I. Do not say “John and myself are friends”; but “John and I,” etc.
Near, Nearly.—“I lost near twenty pounds.” Say “nearly twenty pounds.”
Neither for Either.—“That is not the case, neither.” Say “either.” The double negative is wrong.
Neither, Nor.—Negatives other than neither may take or or nor as their correlative. With subjects connected by “either—or,” “neither—nor,” the verb must be singular:—
Neither he nor his brother were trained for the ministry.
should be
Neither he nor his brother was trained for the ministry.
Either the master or his servant was responsible.
Neither ignorance nor negligence has been the cause of his ruin.