Went is the past tense of the irregular verb go. Follow the link below to find out more and to listen to some examples.

finished with

For more meanings of the phrasal verb end up, follow the link below to our language library.

Done is the past participle of the irregular verb do. Follow the link below to find out more and to listen to some examples.

Notice that we use the passive with by. The passive is the verb to be, (in this case are) with a past participle (in this case eaten). You can't say that things are ate by or are eat by. We always use the past participle and say 'are eaten by' or 'is seen by' or 'was done by' .