i have to go .如果要加usually等副词加在哪里呢?

i have to go .如果要加usually等副词加在哪里呢? gotta到底是have got to 还是 got to 还是have get to,为什么,如果是第二个前面要不要加have是i have gotta go还是i gotta go i'll have to go to an important meeting.为什么meet要加ing?为什么go总是要接to? I have to go wash my face.为什么这里要加go?不可以直接说 I have to wash my face. I HAVE TO GO HOME I HAVE TO GO HOME I have to go to bed. I have to go to make water I have to go to ____ again. I have to go to park to learn the piano中为什么要加第二个to?3Q鄙人感激不尽! Go to have your breakfast before start work 如果go后面不加to有没有语法问题? could you please go hiking with us this sunday?- ___.i have a lot of homework to do You don't have to __(go)there with us. Ye:I really love you better!I do have do not want to lose you!Go home!Let us love each other!Ye:I really love you better!I do have do not want to lose you!Go home!Let us love each other!Ye:I really love you better!I do have do not want to lose you!Go I gotta go.I have to /must go now 现在完成时：I have listened to ,是否要加to I shall have quite a number of books to give you为什么books后面要加to?为什么要用shall?our teacher often gives us a five-minute guiz before class。为什么要用us？ Do you want to 4.__with me this afternoon?Sorry,I have to do my homework.But I am 5.__tomorrow.let us go swimming tomorrow morning don't you want to go to the concert with us?I wish i __ but have an appointment.为什么不用can 用could啊.