he likes to play board games.
he doesn't like to play board games.
does he like to play board games?
we meet our friend every weekend.
we don't meet our friend every weekend.
do we meet our friend every weekend?
he is playing Scrabble at the moment.
he isn't playing Scrabble at the moment.
is he playing Scrabble at the moment?
they are playing basketball right now.
they aren't playing basketball right now.
are they playing basketball right now?
