How to Sign "Hadnt"
To sign 'hadn't,' you will combine the sign for 'have' with a negative headshake. Form both hands into bent 'B' handshapes, where your fingers are straight but bent at the knuckles. Bring both hands inward so your fingertips touch your upper chest. As you do this motion, shake your head 'no' and furrow your eyebrows slightly to indicate the negative meaning.