could index
Regelmä&szlig;iges Verb: index - indexed- indexed

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could index
you could index
he could index
we could index
you could index
they could index 	I could be indexing
you could be indexing
he could be indexing
we could be indexing
you could be indexing
they could be indexing	I could have indexed
you could have indexed
he could have indexed
we could have indexed
you could have indexed
they could have indexed	I could have been indexing
you could have been indexing
he could have been indexing
we could have been indexing
you could have been indexing
they could have been indexing	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I couldn't index
you couldn't index
he couldn't index
we couldn't index
you couldn't index
they couldn't index 	I couldn't be indexing
you couldn't be indexing
he couldn't be indexing
we couldn't be indexing
you couldn't be indexing
they couldn't be indexing	I couldn't have indexed
you couldn't have indexed
he couldn't have indexed
we couldn't have indexed
you couldn't have indexed
they couldn't have indexed	I couldn't have been indexing
you couldn't have been indexing
he couldn't have been indexing
we couldn't have been indexing
you couldn't have been indexing
they couldn't have been indexing	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I index?
could you index?
could he index?
could we index?
could you index?
could they index? 	could I be indexing?
could you be indexing?
could he be indexing?
could we be indexing?
could you be indexing?
could they be indexing? 	could I have indexed?
could you have indexed?
could he have indexed?
could we have indexed?
could you have indexed?
could they have indexed? 	could I have been indexing?
could you have been indexing?
could he have been indexing?
could we have been indexing?
could you have been indexing?
could they have been indexing? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
couldn't I index?
couldn't you index?
couldn't he index?
couldn't we index?
couldn't you index?
couldn't they index? 	couldn't I be indexing?
couldn't you be indexing?
couldn't he be indexing?
couldn't we be indexing?
couldn't you be indexing?
couldn't they be indexing? 	couldn't I have indexed?
couldn't you have indexed?
couldn't he have indexed?
couldn't we have indexed?
couldn't you have indexed?
couldn't they have indexed? 	couldn't I have been indexing?
couldn't you have been indexing?
couldn't he have been indexing?
couldn't we have been indexing?
couldn't you have been indexing?
couldn't they have been indexing?