Grammar fix
pull your weight
do your fair share
To do your fair share of the work in a group, so others aren't left doing it for you.
expressionB1common
Hear it in context
Notice where the phrase sounds natural.
If everyone pulls their weight, we'll finish the project by Friday.
A: Why are we so behind on the slides?
B: Honestly, Tom isn't pulling his weight.
Fix the pattern
One small grammar move makes it sound right.
Not: You have to pull your weights.
Say: You have to pull your weight.
It's always singular 'weight', and the pronoun matches the person: 'pull your/their weight'.