HEAD
/\
/ \
LS / \ RS
/\ / \ /\
/ \_____/ \____/ \
────────────── NECKLINE ─────────────

BREAKDOWN 1️⃣ Left Shoulder
Price rises, makes a high, then pulls back.
2️⃣ Head
Price rises again and makes a higher high than the left shoulder, then pulls back.
3️⃣ Right Shoulder
Price rises again but fails to reach the head's high.
That's the key structure.