I can overlay you can overlay he can overlay we can overlay you can overlay they can overlay
V-ing form
I can be overlaying you can be overlaying he can be overlaying we can be overlaying you can be overlaying they can be overlaying
Perfect
I can have overlaid you can have overlaid he can have overlaid we can have overlaid you can have overlaid they can have overlaid
V-ing perfect
I can have been overlaying you can have been overlaying he can have been overlaying we can have been overlaying you can have been overlaying they can have been overlaying
Negation
Simple form
I can't overlay you can't overlay he can't overlay we can't overlay you can't overlay they can't overlay
V-ing form
I can't be overlaying you can't be overlaying he can't be overlaying we can't be overlaying you can't be overlaying they can't be overlaying
Perfect
I can't have overlaid you can't have overlaid he can't have overlaid we can't have overlaid you can't have overlaid they can't have overlaid
V-ing perfect
I can't have been overlaying you can't have been overlaying he can't have been overlaying we can't have been overlaying you can't have been overlaying they can't have been overlaying
Interrogative form
Simple form
can I overlay? can you overlay? can he overlay? can we overlay? can you overlay? can they overlay?
V-ing form
can I be overlaying? can you be overlaying? can he be overlaying? can we be overlaying? can you be overlaying? can they be overlaying?
Perfect
can I have overlaid? can you have overlaid? can he have overlaid? can we have overlaid? can you have overlaid? can they have overlaid?
V-ing perfect
can I have been overlaying? can you have been overlaying? can he have been overlaying? can we have been overlaying? can you have been overlaying? can they have been overlaying?
Interro-negative form
Simple form
can't I overlay? can't you overlay? can't he overlay? can't we overlay? can't you overlay? can't they overlay?
V-ing form
can't I be overlaying? can't you be overlaying? can't he be overlaying? can't we be overlaying? can't you be overlaying? can't they be overlaying?
Perfect
can't I have overlaid? can't you have overlaid? can't he have overlaid? can't we have overlaid? can't you have overlaid? can't they have overlaid?
V-ing perfect
can't I have been overlaying? can't you have been overlaying? can't he have been overlaying? can't we have been overlaying? can't you have been overlaying? can't they have been overlaying?