can skirl
Regular verb: skirl - skirled- skirled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can skirl
you can skirl
he can skirl
we can skirl
you can skirl
they can skirl 	I can be skirling
you can be skirling
he can be skirling
we can be skirling
you can be skirling
they can be skirling	I can have skirled
you can have skirled
he can have skirled
we can have skirled
you can have skirled
they can have skirled	I can have been skirling
you can have been skirling
he can have been skirling
we can have been skirling
you can have been skirling
they can have been skirling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot skirl
you cannot skirl
he cannot skirl
we cannot skirl
you cannot skirl
they cannot skirl 	I cannot be skirling
you cannot be skirling
he cannot be skirling
we cannot be skirling
you cannot be skirling
they cannot be skirling	I cannot have skirled
you cannot have skirled
he cannot have skirled
we cannot have skirled
you cannot have skirled
they cannot have skirled	I cannot have been skirling
you cannot have been skirling
he cannot have been skirling
we cannot have been skirling
you cannot have been skirling
they cannot have been skirling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I skirl?
can you skirl?
can he skirl?
can we skirl?
can you skirl?
can they skirl? 	can I be skirling?
can you be skirling?
can he be skirling?
can we be skirling?
can you be skirling?
can they be skirling? 	can I have skirled?
can you have skirled?
can he have skirled?
can we have skirled?
can you have skirled?
can they have skirled? 	can I have been skirling?
can you have been skirling?
can he have been skirling?
can we have been skirling?
can you have been skirling?
can they have been skirling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not skirl?
can you not skirl?
can he not skirl?
can we not skirl?
can you not skirl?
can they not skirl? 	can I not be skirling?
can you not be skirling?
can he not be skirling?
can we not be skirling?
can you not be skirling?
can they not be skirling? 	can I not have skirled?
can you not have skirled?
can he not have skirled?
can we not have skirled?
can you not have skirled?
can they not have skirled? 	can I not have been skirling?
can you not have been skirling?
can he not have been skirling?
can we not have been skirling?
can you not have been skirling?
can they not have been skirling?