can drown
Regular verb: drown - drowned- drowned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can drown
you can drown
he can drown
we can drown
you can drown
they can drown 	I can be drowning
you can be drowning
he can be drowning
we can be drowning
you can be drowning
they can be drowning	I can have drowned
you can have drowned
he can have drowned
we can have drowned
you can have drowned
they can have drowned	I can have been drowning
you can have been drowning
he can have been drowning
we can have been drowning
you can have been drowning
they can have been drowning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't drown
you can't drown
he can't drown
we can't drown
you can't drown
they can't drown 	I can't be drowning
you can't be drowning
he can't be drowning
we can't be drowning
you can't be drowning
they can't be drowning	I can't have drowned
you can't have drowned
he can't have drowned
we can't have drowned
you can't have drowned
they can't have drowned	I can't have been drowning
you can't have been drowning
he can't have been drowning
we can't have been drowning
you can't have been drowning
they can't have been drowning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I drown?
can you drown?
can he drown?
can we drown?
can you drown?
can they drown? 	can I be drowning?
can you be drowning?
can he be drowning?
can we be drowning?
can you be drowning?
can they be drowning? 	can I have drowned?
can you have drowned?
can he have drowned?
can we have drowned?
can you have drowned?
can they have drowned? 	can I have been drowning?
can you have been drowning?
can he have been drowning?
can we have been drowning?
can you have been drowning?
can they have been drowning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I drown?
can't you drown?
can't he drown?
can't we drown?
can't you drown?
can't they drown? 	can't I be drowning?
can't you be drowning?
can't he be drowning?
can't we be drowning?
can't you be drowning?
can't they be drowning? 	can't I have drowned?
can't you have drowned?
can't he have drowned?
can't we have drowned?
can't you have drowned?
can't they have drowned? 	can't I have been drowning?
can't you have been drowning?
can't he have been drowning?
can't we have been drowning?
can't you have been drowning?
can't they have been drowning?