How to Complete Sentence Using Form Of Verb

How to Complete Sentence Using Form Of Verb

1) If these Words Can Contain In Sentence (What,While,After,Before) And The First Part Of this Sentence In Past Indefinite then we will Convert the 2nd part of this Sentence In Past Continuous 

2) If a Sentence Can Contain the word (when,Daily,Regularly,Often,at ten) then we convert the sentence in Present Indefinite                                                                                                                

3) If Sentence Can Contain the words ( Just Now, At Present) we Convert The Form Of the Sentence According Present Continuous                       

4) If One Part Of Paragraph In Future Indifinite we Convert the second Part Of Paragraph In Present Indifinite 

5) If the word "By the time" In Sentece then we Convert It Future Perfect