Form of the passive:be+past participle
Active Passive
Simple present:the cat eats the meat. The meat is eaten by the cat
Present continous:the cat is eating the meat. The meat is being eaten by the cat
Present Perfect:the cat has eaten the meat. The meat has been eaten by the cat
Futre Simple:the cat will eat the meat. The meat will be eaten by the cat
be going to:the cat is going to eat the meat. The meat is going to be eaten by the cat
Furure Perfect:the cat will have eaten the meat. The meat will have been eaten by the cat
Simple past:the cat ate the meat. The meat was eaten by the cat
Past Progressive:the cat was eating the meat. The meat was being eaten by the cat
Past Perfect:the cat had eaten the meat. The meat had been eaten by the cat