Singular form of verb, explanation and use of, [47], after you and they, [69] (2).
Singular number, explained, [7].
Sit, confused with set, [56-57], Glossary.
Shall and will, use of, in dependent clauses, [73]; in principal clauses, [71-72]; in questions, [72]; model conjugations of, [88-100]; past tenses of, [76-77].
Should and would, model conjugations of, [88-100]; use of, [76-77].
Slang, [187].
So, use of, [104-105].
Solecisms, [185].
Some, misuse as an adverb, Glossary.
Somebody else's, [10].