can don
Regular verb: don - donned- donned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can don
you can don
she can don
we can don
you can don
they can don 	I can be donning
you can be donning
she can be donning
we can be donning
you can be donning
they can be donning	I can have donned
you can have donned
she can have donned
we can have donned
you can have donned
they can have donned	I can have been donning
you can have been donning
she can have been donning
we can have been donning
you can have been donning
they can have been donning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't don
you can't don
she can't don
we can't don
you can't don
they can't don 	I can't be donning
you can't be donning
she can't be donning
we can't be donning
you can't be donning
they can't be donning	I can't have donned
you can't have donned
she can't have donned
we can't have donned
you can't have donned
they can't have donned	I can't have been donning
you can't have been donning
she can't have been donning
we can't have been donning
you can't have been donning
they can't have been donning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I don?
can you don?
can she don?
can we don?
can you don?
can they don? 	can I be donning?
can you be donning?
can she be donning?
can we be donning?
can you be donning?
can they be donning? 	can I have donned?
can you have donned?
can she have donned?
can we have donned?
can you have donned?
can they have donned? 	can I have been donning?
can you have been donning?
can she have been donning?
can we have been donning?
can you have been donning?
can they have been donning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I don?
can't you don?
can't she don?
can't we don?
can't you don?
can't they don? 	can't I be donning?
can't you be donning?
can't she be donning?
can't we be donning?
can't you be donning?
can't they be donning? 	can't I have donned?
can't you have donned?
can't she have donned?
can't we have donned?
can't you have donned?
can't they have donned? 	can't I have been donning?
can't you have been donning?
can't she have been donning?
can't we have been donning?
can't you have been donning?
can't they have been donning?