can drab
Regular verb: drab - drabed- drabed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can drab
you can drab
he can drab
we can drab
you can drab
they can drab 	I can be drabing
you can be drabing
he can be drabing
we can be drabing
you can be drabing
they can be drabing	I can have drabed
you can have drabed
he can have drabed
we can have drabed
you can have drabed
they can have drabed	I can have been drabing
you can have been drabing
he can have been drabing
we can have been drabing
you can have been drabing
they can have been drabing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot drab
you cannot drab
he cannot drab
we cannot drab
you cannot drab
they cannot drab 	I cannot be drabing
you cannot be drabing
he cannot be drabing
we cannot be drabing
you cannot be drabing
they cannot be drabing	I cannot have drabed
you cannot have drabed
he cannot have drabed
we cannot have drabed
you cannot have drabed
they cannot have drabed	I cannot have been drabing
you cannot have been drabing
he cannot have been drabing
we cannot have been drabing
you cannot have been drabing
they cannot have been drabing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I drab?
can you drab?
can he drab?
can we drab?
can you drab?
can they drab? 	can I be drabing?
can you be drabing?
can he be drabing?
can we be drabing?
can you be drabing?
can they be drabing? 	can I have drabed?
can you have drabed?
can he have drabed?
can we have drabed?
can you have drabed?
can they have drabed? 	can I have been drabing?
can you have been drabing?
can he have been drabing?
can we have been drabing?
can you have been drabing?
can they have been drabing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not drab?
can you not drab?
can he not drab?
can we not drab?
can you not drab?
can they not drab? 	can I not be drabing?
can you not be drabing?
can he not be drabing?
can we not be drabing?
can you not be drabing?
can they not be drabing? 	can I not have drabed?
can you not have drabed?
can he not have drabed?
can we not have drabed?
can you not have drabed?
can they not have drabed? 	can I not have been drabing?
can you not have been drabing?
can he not have been drabing?
can we not have been drabing?
can you not have been drabing?
can they not have been drabing?