My brother can ski.
My brother can ski.
My mother can swim.
My mother can't sing a song.
My grandfather can't ride a bike
My grandfather can run.
My uncle can't play golf
My uncle can play golf.
My father can play the quitar.
My father can play the guitar.
My grandmother can play the guitar.
My grandmother can play the piano.
My sister can't ride a bike.
My sister can ride a bike.
My aunt can't swim.
My aunt can swim.