could boost
Regelmä&szlig;iges Verb: boost - boosted- boosted

Bestätigung 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I could boost
you could boost
he could boost
we could boost
you could boost
they could boost 	I could be boosting
you could be boosting
he could be boosting
we could be boosting
you could be boosting
they could be boosting	I could have boosted
you could have boosted
he could have boosted
we could have boosted
you could have boosted
they could have boosted	I could have been boosting
you could have been boosting
he could have been boosting
we could have been boosting
you could have been boosting
they could have been boosting	

Negation 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
I couldn't boost
you couldn't boost
he couldn't boost
we couldn't boost
you couldn't boost
they couldn't boost 	I couldn't be boosting
you couldn't be boosting
he couldn't be boosting
we couldn't be boosting
you couldn't be boosting
they couldn't be boosting	I couldn't have boosted
you couldn't have boosted
he couldn't have boosted
we couldn't have boosted
you couldn't have boosted
they couldn't have boosted	I couldn't have been boosting
you couldn't have been boosting
he couldn't have been boosting
we couldn't have been boosting
you couldn't have been boosting
they couldn't have been boosting	

Fragende Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
could I boost?
could you boost?
could he boost?
could we boost?
could you boost?
could they boost? 	could I be boosting?
could you be boosting?
could he be boosting?
could we be boosting?
could you be boosting?
could they be boosting? 	could I have boosted?
could you have boosted?
could he have boosted?
could we have boosted?
could you have boosted?
could they have boosted? 	could I have been boosting?
could you have been boosting?
could he have been boosting?
could we have been boosting?
could you have been boosting?
could they have been boosting? 	

Fragende Negation Form 	
Einfache Form 	Form mit V-ing 	Perfekt 	Perfekt mit V-ing 	
couldn't I boost?
couldn't you boost?
couldn't he boost?
couldn't we boost?
couldn't you boost?
couldn't they boost? 	couldn't I be boosting?
couldn't you be boosting?
couldn't he be boosting?
couldn't we be boosting?
couldn't you be boosting?
couldn't they be boosting? 	couldn't I have boosted?
couldn't you have boosted?
couldn't he have boosted?
couldn't we have boosted?
couldn't you have boosted?
couldn't they have boosted? 	couldn't I have been boosting?
couldn't you have been boosting?
couldn't he have been boosting?
couldn't we have been boosting?
couldn't you have been boosting?
couldn't they have been boosting?