be sorry to的否定是什么?not加在哪里请说明理由

be sorry to的否定是什么?not加在哪里请说明理由 be accustomed to do的否定是什么 better to be safe than sorry的中文是什么 be sorry for doing和be sorry to do 可以互换吗?两者的区别是什么?最好能举个例子. be sorry to have done的用法 be able to 否定形式是什么? not be able to =be unable to? 这个词组的否定形式是什么 must be的否定是什么 be sorry to troubie sorry是什么意思sorry to是什么 To be or no to be this is a queation的中文意思是什么 英语的几道题讲解1.-Sorry for being late again.-( )here on time next time,or you will be punished.A.be B.being C.to be D.been2.Be sure to come tonight.(改为否定句）要讲解 --So sorry to have given you so much trouble.--____.A.No trouble at all.B.Don't be sorry. -Sorry to have given you so much trouble.-____.A.No trouble at all.B.Don't be sorry. -sorry to have given you so much trouble.-____.A.No trouble at all.B.Don't be sorry. There seem to be的否定形式 be supposed to do的否定为什么? may的否定回答是什么?no, you _____. Don't be late for school ._____ _____?(改为祈使句）