1
Do you want to dance?
Point to the person (YOU), sign WANT, then sign DANCE by swaying your downward-pointing 'V' hand over your flat, palm-up non-dominant hand. Raise your eyebrows to indicate a yes/no question.
2
I love dancing.
Point to yourself (I), sign LOVE by crossing your arms over your chest, and then perform the DANCE sign, swaying your 'V' hand back and forth over your flat base hand.
3
The dance is tomorrow.
Sign TOMORROW by moving an 'A' handshape forward from your cheek, then sign DANCE. In ASL, time concepts usually come at the beginning of the sentence, so it's structured as 'Tomorrow, dance.'