Here bought is the past participle of the irregular verb buy. Follow the link below to find out more and to listen to some examples.

Here got is the past participle of the irregular verb get. Follow the link below to find out more and to listen to some examples.

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

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