I read, we run, he plays, she writes
do I read? do we run? does he play? does she write?
I don't read. we don't run. he doesn't play. she doesn't write.
they sang a song.
mom cooked lunch.
I bought a dictionary.
he played football.
did they sing?
did mom cook?
did I buy?
did he play?
they didn't sing
mom didn't cook
I didn't buy
he didn't play