If the foreign learners want to study Chinese language better, they should understand some grammar points. When you learn in free Chinese lesson, you may learn the structure 是…的, the part between it is the verb phrase. For instance, 这麻烦是十年前开始的. When learning free Chinese lesson, you should know this structure is used to illustrate the time, place and way of the things have happened. For example, 我是去年三月来中国的.

Another structure you should know when you learn Chinese in China is 连忙…. There are two different verbs in the two places. It means to do another thing just after the first one. 连忙 is an adverb used in the latter part. As a written expressing way, it is also used to illustrate the things happened. For example, you can see such sentence in free Chinese lesson like 看到我进来，孩子连忙不说话了. The two actions are very closely linked together.