Write 20 senteces past perfect afirmative negative interrogative?

El pasado perfecto es bastante simple!

: ) se compone x el verbo have en pasado HAD + el verbo principal en pasado participio, (para oración afirmativa) por lo que quedaría algo así.

Afirmative - I had change my photo profile - I had lived in America - He had taken the exam last year - a thief had stolen my watch - They had visited a doctor.

- He had slept.

- I had finished my work last year.

- It had rained heavily last month.

- The film had started before we reached cinema.

Negative

Al had, le agregamos el not (Had not) pero también puede ser escrito como hadn't.

- I hadn't changed.

- I hadn't lived.

- He hadn't taken the exam last year - A thief hadn't stolen my watch - They hadn't visited a doctor.

- He had'nt slept.

- I hadn't finished my work last year.

- It hadn't rained heavily last month.

- The film hadn't started before we reached cinema.

Interrogative Y aquí el Had, pasaría al principio de la oración mientras que el pronombre y el verbo siguen igual.

- Had I changed my ?

- Had I lived in ?

- Had he taken the exam last year?

- Had a thief stolen my watch?

- Had they visited a doctor?

- Had he slept?

- Had I finished my work last year?

- Had it rained heavily last month?

- Had the film started before we reached cinema.

No son 20 oraciones, pero espero que te pueda servir : ).