Our main discussion is about write caution with imperative sentence. There are many example of caution and we can find it everywhere like zoo and school . I will expain about cautio in school. what is imperative?

Imperative is a verb that use to command, request, warning, advise and intruction. Imperative usually use to warning like caution. When we wants to write imperative sentence, we must know what is a rule in imperative sentence.

Rules of imperative	The example of imperative
1.  Without “to” (bare infinitive)	Go out !
2.  No subject, because subject as “you”	Close the door !
3.  Polite verb with “do” before verb	Do open the book !
4.  Negative sentences use “don’t” before verb	Don’t cheating !
5.  If the speakers say, we can use “let’s” . if negative sentence use “let’s not”	Let’s go to the kalibrasi !

The example of caution in the school :

to undrstand well about imperative, you can do the exercise : 

    1.  .............. be late for school (don’t/not to be)

    2.  .............. the instruction (to read/read)

    3.  .............. clean in the classroom (keep/to keep)

    4.  .............. the page thirty one (to open/open)

    5.  .............. talk during the lesson (not/to talk)