We study/are studying Algebra this semester.
study
are studying
Leo saves/is saving his money to buy trainers.
is saving
saves
Sam's two so he doesn't go/ isn't going to school.
doesn't go
isn't go
How often do you play/ are you playing video games?
are you playing
do you play
You don't watch/ aren't watching this. Can I change the channel?
aren't watching
don't watch
