All three forms are the same (example: cost – cost – cost) cut hit let put set Past simple and past participle are the same but do not end in '–ght' (example: meet – met – met) get have say tell win Past simple and past participle end in '–ght' (example: buy – bought – bought) bring catch fight teach think Past simple –o– and past participle –o–en (example: break – broke – broken) choose freeze speak steal wake http://500ab102e3079df093a4-ff8eeadd950d51fd1fc939dca75b3973.r47.cf1.rackcdn.com/assets_green.swf