could ratiocinate
Verbe régulier : ratiocinate - ratiocinated- ratiocinated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could ratiocinate
you could ratiocinate
she could ratiocinate
we could ratiocinate
you could ratiocinate
they could ratiocinate 	I could be ratiocinating
you could be ratiocinating
she could be ratiocinating
we could be ratiocinating
you could be ratiocinating
they could be ratiocinating	I could have ratiocinated
you could have ratiocinated
she could have ratiocinated
we could have ratiocinated
you could have ratiocinated
they could have ratiocinated	I could have been ratiocinating
you could have been ratiocinating
she could have been ratiocinating
we could have been ratiocinating
you could have been ratiocinating
they could have been ratiocinating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't ratiocinate
you couldn't ratiocinate
she couldn't ratiocinate
we couldn't ratiocinate
you couldn't ratiocinate
they couldn't ratiocinate 	I couldn't be ratiocinating
you couldn't be ratiocinating
she couldn't be ratiocinating
we couldn't be ratiocinating
you couldn't be ratiocinating
they couldn't be ratiocinating	I couldn't have ratiocinated
you couldn't have ratiocinated
she couldn't have ratiocinated
we couldn't have ratiocinated
you couldn't have ratiocinated
they couldn't have ratiocinated	I couldn't have been ratiocinating
you couldn't have been ratiocinating
she couldn't have been ratiocinating
we couldn't have been ratiocinating
you couldn't have been ratiocinating
they couldn't have been ratiocinating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I ratiocinate?
could you ratiocinate?
could she ratiocinate?
could we ratiocinate?
could you ratiocinate?
could they ratiocinate? 	could I be ratiocinating?
could you be ratiocinating?
could she be ratiocinating?
could we be ratiocinating?
could you be ratiocinating?
could they be ratiocinating? 	could I have ratiocinated?
could you have ratiocinated?
could she have ratiocinated?
could we have ratiocinated?
could you have ratiocinated?
could they have ratiocinated? 	could I have been ratiocinating?
could you have been ratiocinating?
could she have been ratiocinating?
could we have been ratiocinating?
could you have been ratiocinating?
could they have been ratiocinating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I ratiocinate?
couldn't you ratiocinate?
couldn't she ratiocinate?
couldn't we ratiocinate?
couldn't you ratiocinate?
couldn't they ratiocinate? 	couldn't I be ratiocinating?
couldn't you be ratiocinating?
couldn't she be ratiocinating?
couldn't we be ratiocinating?
couldn't you be ratiocinating?
couldn't they be ratiocinating? 	couldn't I have ratiocinated?
couldn't you have ratiocinated?
couldn't she have ratiocinated?
couldn't we have ratiocinated?
couldn't you have ratiocinated?
couldn't they have ratiocinated? 	couldn't I have been ratiocinating?
couldn't you have been ratiocinating?
couldn't she have been ratiocinating?
couldn't we have been ratiocinating?
couldn't you have been ratiocinating?
couldn't they have been ratiocinating?