Imperative Verbs
Imperative verbs are verbs which create an imperative sentence, i.e. a sentence that gives an order. It will always sound like the speaker is bossing someone around. Imperative verbs don’t leave room for questions or discussion, even if the sentence has a polite tone.
Use the root form of the verb to create the imperative.
Give me that book!
Clean your room!
Do your homework.
Take the dog for a walk, please.
Don’t touch that!
Push!Do come to visit us whenever you’re in town.
From--> http://www.grammarly.com/handbook/grammar/verbs/35/imperative-verbs/
IMPERATIVES
http://www.englishlanguageguide.com/grammar/imperative.asp
PRACTICE
http://www.englisch-hilfen.de/en/exercises/various/imperative.htm
http://esl.about.com/library/beginner/bl_bgimperative.htm
https://english.lingolia.com/en/grammar/verbs/imperative/exercises
http://web2.uvcs.uvic.ca/elc/studyzone/330/grammar/imperat1.htm
http://www.e-grammar.org/imperative/
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-34457.php
http://www.myenglishpages.com/site_php_files/grammar-exercise-imperative.php#.Utk5p9JaiM8
http://www.tolearnenglish.com/exercises/exercise-english-2/exercise-english-8768.php
http://www.better-english.com/grammar/imperative1.htm