always doing and always do

always do 与be always doing的区别 She always has trouble_____(to do / doing) always see sb doing/do sth always doing sth 还是always do sth 还是always to do sth? be always doing 还是always doing be always doing sth . always doing new things be always doing 造句 I always help my mother () housework.A.do B.doing always用法意思是总是到底是BE ALWAYS DOING STH还是ALWAYS DO STH啊?They alw be always doing和 be always do/does 有什么区别 he always doing sth.和he always do sth.有什么区别