(1)有法律责任(义务)的(responsible by law for sth)[A(for)][通常作pred]：be～for sb's mistakes 对某人的错误负有责任;be～for all the damage done 对造成的所有损失负责;be～for military service 有服兵役的义务;be～for the repairs of the roof of the house 负责修理屋顶;She is～to them for her children's debts. 她有责任替子女向他们偿还债务。I shall not pay my wife's debts—I do not hold myself～. 我不偿还我妻子的债务——我没有义务。

(2)该受(罚)的(likely to suffer in law)[A(to)][无comp]：be～to the tax/penalty 应该纳税/受罚;be～to arrest/instant dismissal/a fine of ten pounds 应该被逮捕/立即解雇/罚10英镑;be～to the law 应服从法律;

(3)易于(likely to have，get，suffer from)[A(to)][作pred]：be～to colds/heart trouble/obesity 易患感冒/犯心脏病/发胖;He is～to fits of temper. 他爱发脾气。She is more～to seasickness than I. 她比我更容易晕船。〖同〗inclined，subject;

(4)易于做，可能的(likely to do sth)[A+to-inf][作pred]：Glass is～to break.玻璃易碎。She is～to catch cold/get annoyed. 她易患感冒/爱生气。She is～to show up at any time.她随时可能会来。〖同〗inclined，likely;

→͵lia′bility n 责任，义务，倾向，(pl)债务，不利