could preserve
Regelmä&szlig;iges Verb: preserve - preserved- preserved

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could preserve
you could preserve
he could preserve
we could preserve
you could preserve
they could preserve 	I could be preserving
you could be preserving
he could be preserving
we could be preserving
you could be preserving
they could be preserving	I could have preserved
you could have preserved
he could have preserved
we could have preserved
you could have preserved
they could have preserved	I could have been preserving
you could have been preserving
he could have been preserving
we could have been preserving
you could have been preserving
they could have been preserving	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I couldn't preserve
you couldn't preserve
he couldn't preserve
we couldn't preserve
you couldn't preserve
they couldn't preserve 	I couldn't be preserving
you couldn't be preserving
he couldn't be preserving
we couldn't be preserving
you couldn't be preserving
they couldn't be preserving	I couldn't have preserved
you couldn't have preserved
he couldn't have preserved
we couldn't have preserved
you couldn't have preserved
they couldn't have preserved	I couldn't have been preserving
you couldn't have been preserving
he couldn't have been preserving
we couldn't have been preserving
you couldn't have been preserving
they couldn't have been preserving	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I preserve?
could you preserve?
could he preserve?
could we preserve?
could you preserve?
could they preserve? 	could I be preserving?
could you be preserving?
could he be preserving?
could we be preserving?
could you be preserving?
could they be preserving? 	could I have preserved?
could you have preserved?
could he have preserved?
could we have preserved?
could you have preserved?
could they have preserved? 	could I have been preserving?
could you have been preserving?
could he have been preserving?
could we have been preserving?
could you have been preserving?
could they have been preserving? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
couldn't I preserve?
couldn't you preserve?
couldn't he preserve?
couldn't we preserve?
couldn't you preserve?
couldn't they preserve? 	couldn't I be preserving?
couldn't you be preserving?
couldn't he be preserving?
couldn't we be preserving?
couldn't you be preserving?
couldn't they be preserving? 	couldn't I have preserved?
couldn't you have preserved?
couldn't he have preserved?
couldn't we have preserved?
couldn't you have preserved?
couldn't they have preserved? 	couldn't I have been preserving?
couldn't you have been preserving?
couldn't he have been preserving?
couldn't we have been preserving?
couldn't you have been preserving?
couldn't they have been preserving?