could unstep
Verbe régulier : unstep - unsteped- unsteped

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could unstep
you could unstep
she could unstep
we could unstep
you could unstep
they could unstep 	I could be unsteping
you could be unsteping
she could be unsteping
we could be unsteping
you could be unsteping
they could be unsteping	I could have unsteped
you could have unsteped
she could have unsteped
we could have unsteped
you could have unsteped
they could have unsteped	I could have been unsteping
you could have been unsteping
she could have been unsteping
we could have been unsteping
you could have been unsteping
they could have been unsteping	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't unstep
you couldn't unstep
she couldn't unstep
we couldn't unstep
you couldn't unstep
they couldn't unstep 	I couldn't be unsteping
you couldn't be unsteping
she couldn't be unsteping
we couldn't be unsteping
you couldn't be unsteping
they couldn't be unsteping	I couldn't have unsteped
you couldn't have unsteped
she couldn't have unsteped
we couldn't have unsteped
you couldn't have unsteped
they couldn't have unsteped	I couldn't have been unsteping
you couldn't have been unsteping
she couldn't have been unsteping
we couldn't have been unsteping
you couldn't have been unsteping
they couldn't have been unsteping	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I unstep?
could you unstep?
could she unstep?
could we unstep?
could you unstep?
could they unstep? 	could I be unsteping?
could you be unsteping?
could she be unsteping?
could we be unsteping?
could you be unsteping?
could they be unsteping? 	could I have unsteped?
could you have unsteped?
could she have unsteped?
could we have unsteped?
could you have unsteped?
could they have unsteped? 	could I have been unsteping?
could you have been unsteping?
could she have been unsteping?
could we have been unsteping?
could you have been unsteping?
could they have been unsteping? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I unstep?
couldn't you unstep?
couldn't she unstep?
couldn't we unstep?
couldn't you unstep?
couldn't they unstep? 	couldn't I be unsteping?
couldn't you be unsteping?
couldn't she be unsteping?
couldn't we be unsteping?
couldn't you be unsteping?
couldn't they be unsteping? 	couldn't I have unsteped?
couldn't you have unsteped?
couldn't she have unsteped?
couldn't we have unsteped?
couldn't you have unsteped?
couldn't they have unsteped? 	couldn't I have been unsteping?
couldn't you have been unsteping?
couldn't she have been unsteping?
couldn't we have been unsteping?
couldn't you have been unsteping?
couldn't they have been unsteping?