How do you say, 'I wonder' in Kreyol? As in the sentence: I wonder what he is doing.

wonder → imajinen, mande, reflechi, poze kesyon

I wonder ... → M'ap imajinen..., M'ap mande'm..., M'ap poze tèt mwen kesyon...

I wonder what he's doing. 
M'ap mande'm sa l'ap fè.

This makes me wonder.
Sa fè'm reflechi.