надо! Надо перевести в косвенную речь.

He said they were having a party previous night

She said the professor hadn't told about climate changes

He said the accident had happened a week ago

She said I don't knew where he is

He said I wasn't going to study today

She said nobody hadn't killed in the earthquake

He said they were having a party previous night

She said the professor hadn't told about climate changes

He said the accident had happened a week ago

She said I don't knew where he is

He said I wasn't going to study today

She said nobody hadn't killed in the earthquake