The Editor's Manual
Grammar, usage, punctuation, and style resource for editors, writers, and learners of the English language.
Both “than I” and “than me” are grammatically correct, since “than” can be used as either a preposition or a conjunction. “Than I” is seen more often in formal usage.
“It’s me” and “This is him/her” are generally acceptable in everyday usage. The strictly correct alternatives, “It is I” and “This is he/she,” are confined to highly formal usage.
“I” is a subject pronoun, while “me” is an object pronoun. In formal styles, use “I” in a compound subject and “me” in a compound object. “Me” is generally preferred in comparisons and after the “be” verb.
Use “you and I” as the subject and “you and me” as the object in a sentence. Avoid hypercorrection. “You and me” is used more often after the “be” verb and in comparisons.
“None” may be either singular or plural, depending on whether you mean “not one” or “not any.” To refer to the individual members of a group, use a singular verb; for the entire group, use a plural verb.
“And” and “but” are often used to begin sentences, especially in creative writing. Do this to emphasize connection or contrast between sentences or to add an element of drama to your prose.
It is grammatically fine to use “because” at the start of a sentence. Just remember to write a complete sentence, and avoid using the pronoun before the noun.
Conjunctions link words, phrases, clauses, and sentences, and show a logical relation between them. Coordinating conjunctions (e.g., “and,” “but”) link elements of equal grammatical status, while subordinating conjunctions (e.g., “because,” “though”) make one clause depend on another for complete meaning.
It is perfectly acceptable and idiomatic to end a sentence with a preposition. Consider “What are you talking about?” and “This is what I was looking for.”
Data can be a plural noun (“the data are”) or a singular mass noun (“the data is”). As a mass noun, it is used much like the word “information.”