Review grammar

https://www.youtube.com/watch?v=84jVz0D-KkY
http://www.englishpage.com/verbpage/activepassive.html

Verb tenses

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.

Basic Tenses: Irregular Verb

This page shows the basic tenses with the irregular verb sing. It includes the affirmative or positive form (+), the negative form (-) and the interrogative or question form (?).

The basic structure is:

positive: + subject + auxiliary verb + main verb negative: - subject + auxiliary verb + not + main verb question: ? auxiliary verb + subject + main verb These are the forms of the main verb that we use to construct the tenses:

base verb past past participle present participle -ing sing sang sung singing

past present future SIMPLE do + base verb (except future: will + base verb) + I did sing I sang I do sing I sing I will sing - I did not sing I do not sing I will not sing ? Did I sing? Do I sing? Will I sing? SIMPLE PERFECT have + past participle + I had sung I have sung I will have sung - I had not sung I have not sung I will not have sung ? Had I sung? Have I sung? Will I have sung? CONTINUOUS be + -ing + I was singing I am singing I will be singing - I was not singing I am not singing I will not be singing ? Was I singing? Am I singing? Will I be singing? CONTINUOUS PERFECT have been + -ing + I had been singing I have been singing I will have been singing - I had not been singing I have not been singing I will not have been singing ? Had I been singing? Have I been singing? Will I have been singing?