could yock
Verbe régulier : yock - yocked- yocked

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could yock
you could yock
she could yock
we could yock
you could yock
they could yock 	I could be yocking
you could be yocking
she could be yocking
we could be yocking
you could be yocking
they could be yocking	I could have yocked
you could have yocked
she could have yocked
we could have yocked
you could have yocked
they could have yocked	I could have been yocking
you could have been yocking
she could have been yocking
we could have been yocking
you could have been yocking
they could have been yocking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not yock
you could not yock
she could not yock
we could not yock
you could not yock
they could not yock 	I could not be yocking
you could not be yocking
she could not be yocking
we could not be yocking
you could not be yocking
they could not be yocking	I could not have yocked
you could not have yocked
she could not have yocked
we could not have yocked
you could not have yocked
they could not have yocked	I could not have been yocking
you could not have been yocking
she could not have been yocking
we could not have been yocking
you could not have been yocking
they could not have been yocking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I yock?
could you yock?
could she yock?
could we yock?
could you yock?
could they yock? 	could I be yocking?
could you be yocking?
could she be yocking?
could we be yocking?
could you be yocking?
could they be yocking? 	could I have yocked?
could you have yocked?
could she have yocked?
could we have yocked?
could you have yocked?
could they have yocked? 	could I have been yocking?
could you have been yocking?
could she have been yocking?
could we have been yocking?
could you have been yocking?
could they have been yocking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not yock?
could you not yock?
could she not yock?
could we not yock?
could you not yock?
could they not yock? 	could I not be yocking?
could you not be yocking?
could she not be yocking?
could we not be yocking?
could you not be yocking?
could they not be yocking? 	could I not have yocked?
could you not have yocked?
could she not have yocked?
could we not have yocked?
could you not have yocked?
could they not have yocked? 	could I not have been yocking?
could you not have been yocking?
could she not have been yocking?
could we not have been yocking?
could you not have been yocking?
could they not have been yocking?