there be sb.do sth 还是there be sb.doing sth.有何区别

there be sb.do sth 还是there be sb.doing sth.有何区别
there be sb.do sth 还是there be sb.doing sth.有何区别

there be sb.do sth 还是there be sb.doing sth.有何区别
应该是there be sb.doing sth.
因为在句子里面,be已经充当了谓语,所以后面的动词要做的是非谓语的成分.
doing 可以表示正在发生(或某种状态),或表主动.也可以理解为充当后置定语,修饰sb.
比如There is a man sitting under the tree.
sitting就是修饰man,表明他是“正坐在树下”,也算是一种状态.

it depends on