FOUNDATION

First we should learn 12 tencers in english ,such as

          PERSENT TENSE
1.Simple prasent tense
2.Prasent continues tense
3.prasent perfect tense
4.prasent perfect continues tense


        PAST TENSE

1.Simple past tense
2.Past continues tense
3.Past perfect tense tense
4.Past perfect continues tense

         FUTURE TENSE 

1.Simple future tense
2.Future continues tense
3.Future perfect tense
4.Future perfect continues tense