1
Do you have any evidence?
Point to the person to sign 'YOU', then sign 'HAVE', and finish with 'EVIDENCE'. Since this is a yes/no question, remember to raise your eyebrows and lean forward slightly while signing.
2
The evidence is clear.
Start with the sign for 'EVIDENCE', then sign 'CLEAR' by bringing both flat hands together and opening them outward. Nod your head firmly to emphasize that the facts are obvious and undeniable.
3
We need more evidence.
Sign 'WE' by tapping your dominant index finger from your dominant shoulder to your other shoulder. Then sign 'NEED', 'MORE', and finally 'EVIDENCE', keeping your movements deliberate.