Grammar fix
I'm not following
say you're lost
A polite way to admit you can't keep up with or understand an explanation, so the speaker slows down or explains again.
expressionB1common
Hear it in context
Notice where the phrase sounds natural.
- Sorry, I'm not following — could you go over that last step again?in a study group
- A: So you take the derivative, then substitute back.
B: Hang on, I'm not following — which bit do I substitute?explaining a maths problem
Fix the pattern
Pattern: Sorry, I'm not following (this/you).
WrongSorry, I'm not follow.
RightSorry, I'm not following.
Use the continuous 'I'm not following', not 'I'm not follow'.
PatternSorry, I'm not following (this/you).
Don't confuse it
'I'm not following' = lost right now mid-explanation; 'I don't get it' is blunter and more final.