could skirl
Verbe régulier : skirl - skirled- skirled

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could skirl
you could skirl
she could skirl
we could skirl
you could skirl
they could skirl 	I could be skirling
you could be skirling
she could be skirling
we could be skirling
you could be skirling
they could be skirling	I could have skirled
you could have skirled
she could have skirled
we could have skirled
you could have skirled
they could have skirled	I could have been skirling
you could have been skirling
she could have been skirling
we could have been skirling
you could have been skirling
they could have been skirling	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not skirl
you could not skirl
she could not skirl
we could not skirl
you could not skirl
they could not skirl 	I could not be skirling
you could not be skirling
she could not be skirling
we could not be skirling
you could not be skirling
they could not be skirling	I could not have skirled
you could not have skirled
she could not have skirled
we could not have skirled
you could not have skirled
they could not have skirled	I could not have been skirling
you could not have been skirling
she could not have been skirling
we could not have been skirling
you could not have been skirling
they could not have been skirling	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I skirl?
could you skirl?
could she skirl?
could we skirl?
could you skirl?
could they skirl? 	could I be skirling?
could you be skirling?
could she be skirling?
could we be skirling?
could you be skirling?
could they be skirling? 	could I have skirled?
could you have skirled?
could she have skirled?
could we have skirled?
could you have skirled?
could they have skirled? 	could I have been skirling?
could you have been skirling?
could she have been skirling?
could we have been skirling?
could you have been skirling?
could they have been skirling? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not skirl?
could you not skirl?
could she not skirl?
could we not skirl?
could you not skirl?
could they not skirl? 	could I not be skirling?
could you not be skirling?
could she not be skirling?
could we not be skirling?
could you not be skirling?
could they not be skirling? 	could I not have skirled?
could you not have skirled?
could she not have skirled?
could we not have skirled?
could you not have skirled?
could they not have skirled? 	could I not have been skirling?
could you not have been skirling?
could she not have been skirling?
could we not have been skirling?
could you not have been skirling?
could they not have been skirling?