can derive
Regular verb: derive - derived- derived

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can derive
you can derive
she can derive
we can derive
you can derive
they can derive 	I can be deriving
you can be deriving
she can be deriving
we can be deriving
you can be deriving
they can be deriving	I can have derived
you can have derived
she can have derived
we can have derived
you can have derived
they can have derived	I can have been deriving
you can have been deriving
she can have been deriving
we can have been deriving
you can have been deriving
they can have been deriving	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't derive
you can't derive
she can't derive
we can't derive
you can't derive
they can't derive 	I can't be deriving
you can't be deriving
she can't be deriving
we can't be deriving
you can't be deriving
they can't be deriving	I can't have derived
you can't have derived
she can't have derived
we can't have derived
you can't have derived
they can't have derived	I can't have been deriving
you can't have been deriving
she can't have been deriving
we can't have been deriving
you can't have been deriving
they can't have been deriving	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I derive?
can you derive?
can she derive?
can we derive?
can you derive?
can they derive? 	can I be deriving?
can you be deriving?
can she be deriving?
can we be deriving?
can you be deriving?
can they be deriving? 	can I have derived?
can you have derived?
can she have derived?
can we have derived?
can you have derived?
can they have derived? 	can I have been deriving?
can you have been deriving?
can she have been deriving?
can we have been deriving?
can you have been deriving?
can they have been deriving? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I derive?
can't you derive?
can't she derive?
can't we derive?
can't you derive?
can't they derive? 	can't I be deriving?
can't you be deriving?
can't she be deriving?
can't we be deriving?
can't you be deriving?
can't they be deriving? 	can't I have derived?
can't you have derived?
can't she have derived?
can't we have derived?
can't you have derived?
can't they have derived? 	can't I have been deriving?
can't you have been deriving?
can't she have been deriving?
can't we have been deriving?
can't you have been deriving?
can't they have been deriving?