Name the opposite: teach (maths)
learn
Name the opposite: lend (money to someone)
borrow (money from somebody)
win (a match)
lose
Name the opposite: arrive
leave
Name the opposite: download (a song)
upload
Name the opposite: turn off (the TV)
turn on
Name the opposite: break (e.g. you phone)
mend / repair / fix
Name the opposite: buy
sell
Name the opposite: pass (an exam)
fail
Name the opposite: push (the door)
pull
Name the opposite: love
hate
Name the opposite: forget
remember
Name the opposite: pick up (somebody at the airport)
drop off
Name the opposite: find
lose
Name the opposite: miss (a train/a bus)
catch
Name the opposite: send (an email)
get or receive
Name the opposite: start (a race)
finish