The past participle of this infinitive is been.
What is read?
The past simple of bite.
What is bit?
It is both the past simple and past participle of bind.
What is bound?
What is past simple?
Past simple of sing.
What is sang?
The past simple of blow.
What is blew?
It is both the past simple and past participle of cling
What is clung?
Past participle of swim.
What is swum?
It is the past simple of throw.
What is threw?
It is the English infinitive for the Swedish word "låna ut".
What is lend?
It is the past simple of forgive.
What is forgave?
The infinitive form of the past participle struck/stricken.
Past participle of take.
What is taken?
Past participle of speak.
What is spoken?
It is the past participle of draw.
What is mistaken?
What is spin?
Past simple of buy.
What is bought?
What is woken?
It is the past participle of ride.
What is ridden?
It is the past participle of lie (ligga).
What is lain?
It is the past participle of tread (trampa, gå på).
What is trodden?