can yak
Verbe régulier : yak - yaked- yaked
Traduction française : jacasser 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can yak
you can yak
she can yak
we can yak
you can yak
they can yak 	I can be yaking
you can be yaking
she can be yaking
we can be yaking
you can be yaking
they can be yaking	I can have yaked
you can have yaked
she can have yaked
we can have yaked
you can have yaked
they can have yaked	I can have been yaking
you can have been yaking
she can have been yaking
we can have been yaking
you can have been yaking
they can have been yaking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I cannot yak
you cannot yak
she cannot yak
we cannot yak
you cannot yak
they cannot yak 	I cannot be yaking
you cannot be yaking
she cannot be yaking
we cannot be yaking
you cannot be yaking
they cannot be yaking	I cannot have yaked
you cannot have yaked
she cannot have yaked
we cannot have yaked
you cannot have yaked
they cannot have yaked	I cannot have been yaking
you cannot have been yaking
she cannot have been yaking
we cannot have been yaking
you cannot have been yaking
they cannot have been yaking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I yak?
can you yak?
can she yak?
can we yak?
can you yak?
can they yak? 	can I be yaking?
can you be yaking?
can she be yaking?
can we be yaking?
can you be yaking?
can they be yaking? 	can I have yaked?
can you have yaked?
can she have yaked?
can we have yaked?
can you have yaked?
can they have yaked? 	can I have been yaking?
can you have been yaking?
can she have been yaking?
can we have been yaking?
can you have been yaking?
can they have been yaking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I not yak?
can you not yak?
can she not yak?
can we not yak?
can you not yak?
can they not yak? 	can I not be yaking?
can you not be yaking?
can she not be yaking?
can we not be yaking?
can you not be yaking?
can they not be yaking? 	can I not have yaked?
can you not have yaked?
can she not have yaked?
can we not have yaked?
can you not have yaked?
can they not have yaked? 	can I not have been yaking?
can you not have been yaking?
can she not have been yaking?
can we not have been yaking?
can you not have been yaking?
can they not have been yaking?