can darkle
Regular verb: darkle - darkled- darkled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can darkle
you can darkle
he can darkle
we can darkle
you can darkle
they can darkle 	I can be darkling
you can be darkling
he can be darkling
we can be darkling
you can be darkling
they can be darkling	I can have darkled
you can have darkled
he can have darkled
we can have darkled
you can have darkled
they can have darkled	I can have been darkling
you can have been darkling
he can have been darkling
we can have been darkling
you can have been darkling
they can have been darkling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't darkle
you can't darkle
he can't darkle
we can't darkle
you can't darkle
they can't darkle 	I can't be darkling
you can't be darkling
he can't be darkling
we can't be darkling
you can't be darkling
they can't be darkling	I can't have darkled
you can't have darkled
he can't have darkled
we can't have darkled
you can't have darkled
they can't have darkled	I can't have been darkling
you can't have been darkling
he can't have been darkling
we can't have been darkling
you can't have been darkling
they can't have been darkling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I darkle?
can you darkle?
can he darkle?
can we darkle?
can you darkle?
can they darkle? 	can I be darkling?
can you be darkling?
can he be darkling?
can we be darkling?
can you be darkling?
can they be darkling? 	can I have darkled?
can you have darkled?
can he have darkled?
can we have darkled?
can you have darkled?
can they have darkled? 	can I have been darkling?
can you have been darkling?
can he have been darkling?
can we have been darkling?
can you have been darkling?
can they have been darkling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I darkle?
can't you darkle?
can't he darkle?
can't we darkle?
can't you darkle?
can't they darkle? 	can't I be darkling?
can't you be darkling?
can't he be darkling?
can't we be darkling?
can't you be darkling?
can't they be darkling? 	can't I have darkled?
can't you have darkled?
can't he have darkled?
can't we have darkled?
can't you have darkled?
can't they have darkled? 	can't I have been darkling?
can't you have been darkling?
can't he have been darkling?
can't we have been darkling?
can't you have been darkling?
can't they have been darkling?