apt'sqa'maq, I lock him/her out, I lock him/her in (first person singular animate subject, third person singular animate object)
apt'sqa'mul, I lock you out, I lock you in (first person singular animate subject, second person singular animate object)
apt'sqa'muit, He/she locks me out, he/she locks me in (third person singular animate subject, first person singular animate object)