could concave
Regelmä&szlig;iges Verb: concave - concaved- concaved

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could concave
you could concave
she could concave
we could concave
you could concave
they could concave 	I could be concaving
you could be concaving
she could be concaving
we could be concaving
you could be concaving
they could be concaving	I could have concaved
you could have concaved
she could have concaved
we could have concaved
you could have concaved
they could have concaved	I could have been concaving
you could have been concaving
she could have been concaving
we could have been concaving
you could have been concaving
they could have been concaving	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I couldn't concave
you couldn't concave
she couldn't concave
we couldn't concave
you couldn't concave
they couldn't concave 	I couldn't be concaving
you couldn't be concaving
she couldn't be concaving
we couldn't be concaving
you couldn't be concaving
they couldn't be concaving	I couldn't have concaved
you couldn't have concaved
she couldn't have concaved
we couldn't have concaved
you couldn't have concaved
they couldn't have concaved	I couldn't have been concaving
you couldn't have been concaving
she couldn't have been concaving
we couldn't have been concaving
you couldn't have been concaving
they couldn't have been concaving	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I concave?
could you concave?
could she concave?
could we concave?
could you concave?
could they concave? 	could I be concaving?
could you be concaving?
could she be concaving?
could we be concaving?
could you be concaving?
could they be concaving? 	could I have concaved?
could you have concaved?
could she have concaved?
could we have concaved?
could you have concaved?
could they have concaved? 	could I have been concaving?
could you have been concaving?
could she have been concaving?
could we have been concaving?
could you have been concaving?
could they have been concaving? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
couldn't I concave?
couldn't you concave?
couldn't she concave?
couldn't we concave?
couldn't you concave?
couldn't they concave? 	couldn't I be concaving?
couldn't you be concaving?
couldn't she be concaving?
couldn't we be concaving?
couldn't you be concaving?
couldn't they be concaving? 	couldn't I have concaved?
couldn't you have concaved?
couldn't she have concaved?
couldn't we have concaved?
couldn't you have concaved?
couldn't they have concaved? 	couldn't I have been concaving?
couldn't you have been concaving?
couldn't she have been concaving?
couldn't we have been concaving?
couldn't you have been concaving?
couldn't they have been concaving?