两个简单的英语辨析题~

关于maybe和may be的..
如果位于句首，就用maybe；如果位于主语后面，就是may be，这里be是谓语动词，may表频率

across是介词，比如说用go across the street
through是从内部穿过的意思，如
cross是动词,cross the street
over是在上方，on是在某个东西上，或者在墙上也是用on
through

我只知道一点关于maybe和may be的..
maybe是副词,但在may be中may是一个情态动词,be是情态动词后跟随的动词原形.

across -- walk across the road
过马路
(通常ACROSS的前面是动词)

cross over -- cross over the river
过河
(前面没有动词)

on -- The textbook you want is on the table.
你要的课本在桌子上面。 (ON=上面)

trough -- The bullet went straight through him.
子弹从他身上穿了过去 (TROUGH= 从一端至一端；穿过)

maybe - Maybe I'll go to your house later.
(或许一会儿我会过去你家。)
--Maybe he's the one who did this
这件事有可能是他做的(已经做了)

MAYBE可能已经发生了，可能还没。

may be-- I may be late to your house.
我可能会迟一些才去你的家。
-- He may be the one who will do this.
他有可