Answers

2014-07-13T11:15:57+08:00
Simple Forms 

Past Tense
Present Tense
Future Tense

Progressive Forms

Past Progressive
Present Progressive 
Future Progressive

Perfect Forms

Past Perfect
Present Perfect
Future Perfect

Perfect Progressive Forms

Past Perfect Progressive
Present Perfect Progressive
Future Perfect Progressive

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2014-07-13T11:17:47+08:00
N English, there are three basic tenses: present, past, and future. Each has a perfect form, indicating completed action; each has a progressive 
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