6.
They say that they don't remember his address
They said that they didn't remember his address
7.
They say that they don't know her name
They said that they didn't know her name
8.
She says that she doesn't understand the joke
She said that she didn't understand the joke
9.
They say that the cake tastes wonderful
They said that the cake tasted wonderful
10.
He says that he feels bad
He said that he felt bad