could tittup
Verbe régulier : tittup - tittuped- tittuped

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could tittup
you could tittup
she could tittup
we could tittup
you could tittup
they could tittup 	I could be tittuping
you could be tittuping
she could be tittuping
we could be tittuping
you could be tittuping
they could be tittuping	I could have tittuped
you could have tittuped
she could have tittuped
we could have tittuped
you could have tittuped
they could have tittuped	I could have been tittuping
you could have been tittuping
she could have been tittuping
we could have been tittuping
you could have been tittuping
they could have been tittuping	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't tittup
you couldn't tittup
she couldn't tittup
we couldn't tittup
you couldn't tittup
they couldn't tittup 	I couldn't be tittuping
you couldn't be tittuping
she couldn't be tittuping
we couldn't be tittuping
you couldn't be tittuping
they couldn't be tittuping	I couldn't have tittuped
you couldn't have tittuped
she couldn't have tittuped
we couldn't have tittuped
you couldn't have tittuped
they couldn't have tittuped	I couldn't have been tittuping
you couldn't have been tittuping
she couldn't have been tittuping
we couldn't have been tittuping
you couldn't have been tittuping
they couldn't have been tittuping	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I tittup?
could you tittup?
could she tittup?
could we tittup?
could you tittup?
could they tittup? 	could I be tittuping?
could you be tittuping?
could she be tittuping?
could we be tittuping?
could you be tittuping?
could they be tittuping? 	could I have tittuped?
could you have tittuped?
could she have tittuped?
could we have tittuped?
could you have tittuped?
could they have tittuped? 	could I have been tittuping?
could you have been tittuping?
could she have been tittuping?
could we have been tittuping?
could you have been tittuping?
could they have been tittuping? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I tittup?
couldn't you tittup?
couldn't she tittup?
couldn't we tittup?
couldn't you tittup?
couldn't they tittup? 	couldn't I be tittuping?
couldn't you be tittuping?
couldn't she be tittuping?
couldn't we be tittuping?
couldn't you be tittuping?
couldn't they be tittuping? 	couldn't I have tittuped?
couldn't you have tittuped?
couldn't she have tittuped?
couldn't we have tittuped?
couldn't you have tittuped?
couldn't they have tittuped? 	couldn't I have been tittuping?
couldn't you have been tittuping?
couldn't she have been tittuping?
couldn't we have been tittuping?
couldn't you have been tittuping?
couldn't they have been tittuping?