Present Continuous

Definition: The present continuous is formed by adding the present participle (the "- ing form") to the present simple of the verb to be:

Examples:

I am working
You/we/they are working
He/she/it is working

I am not working
You/we/they are not working
He/she/it is not working

Am I working?
Are you/we/they working?
Is he/she/it working?



Form: [am/is/are + present participle]



Use: Use the Present Continuous with Normal Verbs to express the idea that something is happening now, at this very moment. It can also be used to show that something is not happening now.


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Credits:

http://www.englishpage.com/verbpage/presentcontinuous.html
http://esl.about.com/od/grammarstructures/a/prescont.htm