1
I will see you on Sunday.
Sign 'I', 'SEE', 'YOU', and then perform the sign for Sunday by holding up both 'B' hands with palms facing outward and making small, opposing circles.
2
Every Sunday, we go to the park.
To convey this, sign 'SUNDAY' using the outward-facing 'B' hands circling, then sign 'WE', 'GO', 'PARK'. To emphasize 'every,' you can pull the Sunday sign downward slightly as you circle.
3
Is the store open on Sunday?
Raise your eyebrows to indicate a yes/no question. Sign 'STORE', 'OPEN', and finish with the 'SUNDAY' sign, ensuring your palms stay facing outward while making the circular motions.