I could pray you could pray he could pray we could pray you could pray they could pray
V-ing form
I could be praying you could be praying he could be praying we could be praying you could be praying they could be praying
Perfect
I could have prayed you could have prayed he could have prayed we could have prayed you could have prayed they could have prayed
V-ing perfect
I could have been praying you could have been praying he could have been praying we could have been praying you could have been praying they could have been praying
Negation
Simple form
I couldn't pray you couldn't pray he couldn't pray we couldn't pray you couldn't pray they couldn't pray
V-ing form
I couldn't be praying you couldn't be praying he couldn't be praying we couldn't be praying you couldn't be praying they couldn't be praying
Perfect
I couldn't have prayed you couldn't have prayed he couldn't have prayed we couldn't have prayed you couldn't have prayed they couldn't have prayed
V-ing perfect
I couldn't have been praying you couldn't have been praying he couldn't have been praying we couldn't have been praying you couldn't have been praying they couldn't have been praying
Interrogative form
Simple form
could I pray? could you pray? could he pray? could we pray? could you pray? could they pray?
V-ing form
could I be praying? could you be praying? could he be praying? could we be praying? could you be praying? could they be praying?
Perfect
could I have prayed? could you have prayed? could he have prayed? could we have prayed? could you have prayed? could they have prayed?
V-ing perfect
could I have been praying? could you have been praying? could he have been praying? could we have been praying? could you have been praying? could they have been praying?
Interro-negative form
Simple form
couldn't I pray? couldn't you pray? couldn't he pray? couldn't we pray? couldn't you pray? couldn't they pray?
V-ing form
couldn't I be praying? couldn't you be praying? couldn't he be praying? couldn't we be praying? couldn't you be praying? couldn't they be praying?
Perfect
couldn't I have prayed? couldn't you have prayed? couldn't he have prayed? couldn't we have prayed? couldn't you have prayed? couldn't they have prayed?
V-ing perfect
couldn't I have been praying? couldn't you have been praying? couldn't he have been praying? couldn't we have been praying? couldn't you have been praying? couldn't they have been praying?