Grammer.

I'm going to record the frequency of your trips to the bathroom.

The items you're recording must be expressed by a noun, or "noun phrase."

"You go" is the wrong type of expression.

Edit. Dave's solution is the more natural way to say what you mean.

(You'll have to give up "frequency.")

Not quite.

I'm going to record the frequency of you going to the bathroom.

I'm going to record how often you go to the bathroom. - This is how I would say it.

AnonymousThank you for the reply.I need more examples for my previous question.
can I say
I'm going to record the frequency of you go to the bathroom.

Please place follow-up questions in the same thread. Thanks.

I'm going to [record / note / take note of / count / keep (a) count of] how often you [do this / do that / ...].

C

Although people use the expression casually, you can't count "how often" something happens.

(You can count how many times something happens.)

Avangiyou can't count "how often" something happens

Hmmm.

That does seem true,