tu a tam
"He could only understand a word here and there." (On jen rozuměl tu a tam nějaké slovo.)
"I do a bit of teaching here and there." (Já tu a tam trochu vyučuji.)
sem tam
"He could only understand a word here and there." (On jen rozuměl sem tam nějaké slovo.)
"I do a bit of teaching here and there." (Já sem tam trochu vyučuji.)