I can pray you can pray he can pray we can pray you can pray they can pray
V-ing form
I can be praying you can be praying he can be praying we can be praying you can be praying they can be praying
Perfect
I can have prayed you can have prayed he can have prayed we can have prayed you can have prayed they can have prayed
V-ing perfect
I can have been praying you can have been praying he can have been praying we can have been praying you can have been praying they can have been praying
Negation
Simple form
I cannot pray you cannot pray he cannot pray we cannot pray you cannot pray they cannot pray
V-ing form
I cannot be praying you cannot be praying he cannot be praying we cannot be praying you cannot be praying they cannot be praying
Perfect
I cannot have prayed you cannot have prayed he cannot have prayed we cannot have prayed you cannot have prayed they cannot have prayed
V-ing perfect
I cannot have been praying you cannot have been praying he cannot have been praying we cannot have been praying you cannot have been praying they cannot have been praying
Interrogative form
Simple form
can I pray? can you pray? can he pray? can we pray? can you pray? can they pray?
V-ing form
can I be praying? can you be praying? can he be praying? can we be praying? can you be praying? can they be praying?
Perfect
can I have prayed? can you have prayed? can he have prayed? can we have prayed? can you have prayed? can they have prayed?
V-ing perfect
can I have been praying? can you have been praying? can he have been praying? can we have been praying? can you have been praying? can they have been praying?
Interro-negative form
Simple form
can I not pray? can you not pray? can he not pray? can we not pray? can you not pray? can they not pray?
V-ing form
can I not be praying? can you not be praying? can he not be praying? can we not be praying? can you not be praying? can they not be praying?
Perfect
can I not have prayed? can you not have prayed? can he not have prayed? can we not have prayed? can you not have prayed? can they not have prayed?
V-ing perfect
can I not have been praying? can you not have been praying? can he not have been praying? can we not have been praying? can you not have been praying? can they not have been praying?