Don't forget that prepositions always take the objective case. Don't say "Between you and I"; say "Between you and me"
Two prepositions should not govern one objective unless there is an immediate connection between them. "He was refused admission to and forcibly ejected from the school" should be "He was refused admission to the school and forcibly ejected from it."
SUMMON—SUMMONS
Don't say "I shall summons him," but "I shall summon him." Summon is a verb, summons, a noun.
It is correct to say "I shall get a summons for him," not a summon.
UNDENIABLE—UNEXCEPTIONABLE
"My brother has an undeniable character" is wrong if I wish to convey the idea that he has a good character. The expression should be in that case "My brother has an unexceptionable character." An undeniable character is a character that cannot be denied, whether bad or good. An unexceptionable character is one to which no one can take exception.
THE PRONOUNS
Very many mistakes occur in the use of the pronouns. "Let you and I go" should be "Let you and me go." "Let them and we go" should be "Let them and us go." The verb let is transitive and therefore takes the objective case.
"Give me them flowers" should be "Give me those flowers"; "I mean them three" should be "I mean those three." Them is the objective case of the personal pronoun and cannot be used adjectively like the demonstrative adjective pronoun. "I am as strong as him" should be "I am as strong as he"; "I am younger than her" should be "I am younger than she;" "He can write better than me" should be "He can write better than I," for in these examples the objective cases him, her and me are used wrongfully for the nominatives. After each of the misapplied pronouns a verb is understood of which each pronoun is the subject. Thus, "I am as strong as he (is)." "I am younger than she (is)." "He can write better than I (can)."