1¨- 2§ = natural game force

1¨- 2¨ = Standard Raise

1¨- 2©= Game force raise or invitational 2nt , 2s asks

1¨ - 2ª = High card limit raise forcing to 3¨

1¨ - 2NT = Game force

1¨ - 3§ = natural invitational

1¨ - 3¨ = shape limit raise (3NT not playable opposite weak NT)

1¨ -3©,3ª = preempt

1¨ - 3NT ?

1¨ -4§ ?