Changed the following sentences into the negative form

1. he had made a lot of mistakes
2.i had typed the letter myself
3.someone had stolen his mobile phone
4.everybody had left the dance hall
5.she had found her lost document

change the following sentences into the interrogative form
1. the gate had been closed for hundreds of years
2.the workmen had clean the building
3.the captain had been more careful with his ship
4. he had read the whole instructions
5.the guests had come to the ballroom

Changed the following sentences into the negative form