Составить 10 предложений с неправильными глаголами: be, beat, become, begin, break, bring, broadcast, build, buy, can в Present Perfect Срочно!!! Заранее спасибо

1. He has just was here. 2. They have beaten my friend. 3. I haven't become the president yet.4. She has already done her homework5. I think, I've just broke her heart. 6. He has not brought my money yet.7. They have broadcasted this show for many years.8. This building have built since 2015.9. I have not bought present for my mother yet.10. He has been able to swim since childhood