Active:S+V+O
Ex : They sell bread here
Passive: S + be + pp
Ex: Bread is sold here
active: S + is/am/are + V-ing+ O
Ex: she is making a cake
Passive: S + is/am/are + be-ing + pp
Ex: A cake is being made by her.
Active: S + have/has + V3/ed + O
Ex : he has washed his car for hours
passive : S + have/has + been + pp
Ex : His car has been washed by him for hours.
Active : S + would + V1 + O
Ex : he would sent the picture
Passive : S + would + be +pp
Ex : The picture would be sent by his
Active: S + will + have + V3/ed + O
Ex : They will have completed the assignment by the end of january
Passive : S + will + has been + pp
Ex : The assignment will have been completed by the end of january
Yes/No: To be + S + PP
WH question : Wh-Q + to be + S + pp
Active : S + V-ed + O
Ex : my mother bought that washing machine in 2012
Passive : S + was/ were + pp
Ex : That washing machine was bought by my mother in 2012
Active : S + was/ were + V-ing + O
Ex : Yesterday morning she was cutting the grass.
Passive : S + was/were + be-ing + pp
Ex : The grass was being cut by her yesterday morning.
Active : S + had + V3/ed + O
Ex : She had cooked lunch before leaving.
Passive : S + Had + Been + pp
Ex : Lunch had been cooked by her before she left.
Active : S + will + V + O
Ex : i will feed the dogs
Passive : S + Will be+pp
Ex : The dogs will be fed
Active : S + modal verb + be + pp ( can/ could/ should/ might/ must/ may/....)
Ex: My brother could speak English when he was five.