Normally, after your opening bid, Partner's response of a jump raise, jump shift or 2NT bid are forcing to game.
But when he has passed already Partner's responses of a jump raise, a jump shift or bid of 2NT show . . . . . . . . points and are . . . . . . . . . . . . ! You should . . . . . . . . with a minimum (. . . . - . . . . points) but should raise to . . . . . . . . with anything more.
After a new suit bid by Partner you also may . . . . . . . . at any time if you feel a . . . . . . . contract is out of reach. Be aware however that if you find a trump fit and Partner has an . . . . . . . . . hand his strength may increase (through additional . . . . . . . points) to . . . . points or more.
Here follow two examples.