Languages › English as a Second Language A Lot, Lots Of, A Lot Of Share Flipboard Email Print Paul Bradbury/ Caiaimage/ Getty Images English as a Second Language Grammar Pronunciation & Conversation Vocabulary Writing Skills Reading Comprehension Business English Resources for Teachers By Kenneth Beare English as a Second Language (ESL) Expert TESOL Diploma, Trinity College London M.A., Music Performance, Cologne University of Music B.A., Vocal Performance, Eastman School of Music Kenneth Beare is an English as a Second Language (ESL) teacher and course developer with over three decades of teaching experience. our editorial process Kenneth Beare Updated August 01, 2019 The quantifiers 'a lot', 'lots of', and 'a lot of' are often used interchangeably in English. Study the rules for usage with this guide to these commonly used expressions. A Lot, Lots Of, A Lot Of These three expressions are used in informal English. They can mean either a great quantity of or a large number of and can be rather confusing at times. Here are the general rules for their use. A Lot Of / Lots Of These two expressions both mean a great deal of or several. They are used before a count or non-count noun. These two expressions tend to be used in informal English. Examples: We need a lot of people for this game.She likes lots of jam on her toast. A Lot Use a lot at the end of a sentence as an adverb. A lot is NOT followed by a noun. The meaning is the same as a great deal. Examples: I enjoy swimming a lot.Mary seems to travel a lot.