Bidding after 2NT opening

The bidding is exactly the same as after a 1NT opening, but one level higher

• 3♣ Stayman with a 4-card major (with at least 5 points one ace)
• 3♦/3♠ Jacoby Transfer with a 5+card major (already from 0 points)
• 3NT 5+ points (with no 4 or 5 card major)