(を) 開ける (open something)
(が) 開く (something opens)
(を) 閉める (close something)
(が) 閉まる (something closes)
(を) 入れる (put something in)
(が) 入る (something goes in)
(を) 出す (take something out )
(が) 出る (something goes out)
(を) つける (turn something on)
(が) つく (something turns on)
(を) 消す (turn something off)
(が) 消える (something turns off)
(を) 壊す (break something)
(が) 壊れる (something breaks)
(を) 汚す (make something dirty)
(が) 汚れる (something becomes dirty)
(を) 落とす (to drop something)
(が) 落ちる (something drops)
(を) わかす (to boil something)
(が) わく (something boils)