Verbs
Simple Present Simple Past Simple Future
I study English every day.
Two years ago, I studied English in England. If you are having problems, I will help you study English.
I am going to study English next year.
Present Continuous Past Continuous Future Continuous
I am studying English now.
I was studying English when you called yesterday. I will be studying English when you arrive tonight.
I am going to be studying English when you arrive tonight.
Present Perfect Past Perfect Future Perfect
I have studied English in several different countries. I had studied a little English before I moved to the U.S. I will have studied every tense by the time I finish this course.
I am going to have studied every tense by the time I finish this course.
Present Perfect Continuous Past Perfect Continuous Future Perfect Continuous
I have been studying English for five years. I had been studying English for five years before I moved to the U.S. I will have been studying English for over two hours by the time you arrive.
I am going to have been studying English for over two hours by the time you arrive.
http://www.englishpage.com/verbpage/verbtenseintro.html
Active Tenses
Simple Present
Present Action or Condition General Truths Non-action; Habitual Action Future Time
• I hear you.
• Here comes the bus. • There are thirty days in September. • I like music.
• I run on Tuesdays and Sundays. • The train leaves at 4:00 p.m.
Present Progressive
Activity in Progress Verbs of Perception
• I am playing soccer now • He is feeling sad
Simple Past
Completed Action Completed Condition
• We visted the museum yesterday. • The weather was rainy last week.
Past Progressive
Past Action that took place over a period of time Past Action interrupted by another
• They were climbing for twenty-seven days. • We were eating dinner when she told me.
Future
With will/won't -- Activity or event that will or won't exist or