Can you say ‘napag-isip-isip’ in English?

You will use ‘sort out’

Merriam-Webster’s usage of ‘sort’: To free of confusion; clarify — used with ‘out’



Maghihintay ako hanggang sa mapag-isip-isip mo na ang bagay na sinabi ko.

I will wait until you have sorted out the thing that I have said.



Mag-isip-isip ka bago ka sumabak.

Do sort things out before you embark.