Grammar fix
cheer on
encourage and support
to shout encouragement to someone or show that you're behind them
phrasal verbB1common
Hear it in context
Notice where the phrase sounds natural.
Don't worry, we'll all be there cheering you on.
It meant a lot having my family cheering me on from the stands.
Fix the pattern
One small grammar move makes it sound right.
Confusing 'cheer on' (support) with 'cheer up' (lift someone's mood).