Pronouns it 0 its (not it’s, a contraction of it is; note: there is no such word as its’) you 0 your (not you’re, a contraction of you are) they 0 their (not they’re, a contraction of they are) who 0 whose (not who’s, a contraction of who is) Other Common Errors everyday (adjective) vs. every day (noun) lead (present tense) vs. ed (past tense) rregardless is not a word, don’t use it then (adverb) vs. than (conjunction) lose (verb) vs. loose (mainly an adjective) data is the plural of datum e. g. , (for example) vs. i. e. , (that is) “This applies to universities in the DC Metro Area (e. g. , The Johns Hopkins University). ” “This refers to the best business school in the DC Metro Area (i. e. , The Johns Hopkins University). ” that vs. which Restrictive (identifying) clauses use that and are not set off with commas: BU. 350. 620 is the course that I take on Mondays.
Non-restrictive (commenting) clauses use which and are set off with commas or parentheses: BU. 350. 620, which is a Carey required course, is the course I take on Mondays. Comma preceding and It is correct to have a ‘,’ precede ‘and’ in a list of words that denotes a separation of the items as distinct as shown below: “The budget is split between Chris, Dan and A1. ” Meaning: Chris gets 50%, Dan and A1 each get 25% “The budget is split between Chris, Dan, and A1. ” Meaning: Each gets 1/3 Common English Grammar Usage By Jvanbemmel