you sing (at her/his place)
we (you and I) sing (at her/his place)
you [plural] sing (at her/his place)
s/he sings (at her/his place)
they sing at his/her place
I sing (at her/his place)
we (but not you) sing (at her/his place)
you sing (at her/his place)
we (you and I) sing (at her/his place)
you [plural] sing (at her/his place)
s/he sings (at her/his place)
they sing at his/her place
I sing (at her/his place)
we (but not you) sing (at her/his place)