帮忙翻英语分词结构的几句句子

1.While I come her across,she chats
in course of in the cafe.
2.The boy who goes up to crawl to the tree has
fallen down.
3.That person who stands under the tree is my elder brother.
4.They have let fire burn the whole night.
5.Since not have eaten Chinese food previously,she can not use chopsticks.
6.When washing hands,don't always shed by water.