Languages › English as a Second Language Too vs. Two vs. To: Common English Mistakes Share Flipboard Email Print Caiaimage/Sam Edwards / 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 March 03, 2018 One of the most common of all mistakes in English is the incorrect usage of the homophones to, too, and two. 'To' is a preposition, 'too' a modifier and 'two' a number. Learn the differences below. Too vs. Two vs. To Too means "also" and is generally used at the end of a sentence. "Too" also indicates too much of a particular quality. Examples: That car is too expensive for me!I'd love to come to the party, too. Two is the written form of the number 2. Examples: There are two applicants for the job.She has two cats. To is generally used as a preposition. It is also used as part of the infinitive form of verbs. Examples: I gave the book to him.The verb "to understand" is irregular.