could tissue
Verbe régulier : tissue - tissued- tissued

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could tissue
you could tissue
he could tissue
we could tissue
you could tissue
they could tissue 	I could be tissuing
you could be tissuing
he could be tissuing
we could be tissuing
you could be tissuing
they could be tissuing	I could have tissued
you could have tissued
he could have tissued
we could have tissued
you could have tissued
they could have tissued	I could have been tissuing
you could have been tissuing
he could have been tissuing
we could have been tissuing
you could have been tissuing
they could have been tissuing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not tissue
you could not tissue
he could not tissue
we could not tissue
you could not tissue
they could not tissue 	I could not be tissuing
you could not be tissuing
he could not be tissuing
we could not be tissuing
you could not be tissuing
they could not be tissuing	I could not have tissued
you could not have tissued
he could not have tissued
we could not have tissued
you could not have tissued
they could not have tissued	I could not have been tissuing
you could not have been tissuing
he could not have been tissuing
we could not have been tissuing
you could not have been tissuing
they could not have been tissuing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I tissue?
could you tissue?
could he tissue?
could we tissue?
could you tissue?
could they tissue? 	could I be tissuing?
could you be tissuing?
could he be tissuing?
could we be tissuing?
could you be tissuing?
could they be tissuing? 	could I have tissued?
could you have tissued?
could he have tissued?
could we have tissued?
could you have tissued?
could they have tissued? 	could I have been tissuing?
could you have been tissuing?
could he have been tissuing?
could we have been tissuing?
could you have been tissuing?
could they have been tissuing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not tissue?
could you not tissue?
could he not tissue?
could we not tissue?
could you not tissue?
could they not tissue? 	could I not be tissuing?
could you not be tissuing?
could he not be tissuing?
could we not be tissuing?
could you not be tissuing?
could they not be tissuing? 	could I not have tissued?
could you not have tissued?
could he not have tissued?
could we not have tissued?
could you not have tissued?
could they not have tissued? 	could I not have been tissuing?
could you not have been tissuing?
could he not have been tissuing?
could we not have been tissuing?
could you not have been tissuing?
could they not have been tissuing?