Нужно написать три формы неправильных глаголов таких как:to be,to go,to spend,to come,to run,to see,to build,to buy,to bring,to burn,to give,to take.

be was/were been
Spend spent spent
Come came come
Run ran run
See saw seen
Build built built
Buy bought bought
Bring brought brought
Give gave given
Take took taken