有suppose (that) ; be supposed to 。没有suppose to do 这种用法。
be supposed to是指"本应当如何“ , 相当于You are expected to do sth.
suppose 作及物动词时, I suppose (that) you're right. 我猜你是对的。(相当于I guess...)
Suppose a fire broke out. 假设有火灾发生。
所以提问里第一句错误,第二句正确,意思是你应当等我信号的。(你却没等)
第一句语法本身错误。第二句是正确的。
You are supposed to wait for my signal. (你应该要等待我的信号。)
are的存在是指定主词,没有的话you就没有指定为主词了。
you supposed to wait for my signal
你认为应该等我的信号
you are supposed to wait for my signal
你应该等我的信号。
你应该等我的信号。
你应该等我的信号。