could amplify
Verbo regular: amplify - amplified- amplified

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could amplify
you could amplify
he could amplify
we could amplify
you could amplify
they could amplify 	I could be amplifying
you could be amplifying
he could be amplifying
we could be amplifying
you could be amplifying
they could be amplifying	I could have amplified
you could have amplified
he could have amplified
we could have amplified
you could have amplified
they could have amplified	I could have been amplifying
you could have been amplifying
he could have been amplifying
we could have been amplifying
you could have been amplifying
they could have been amplifying	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't amplify
you couldn't amplify
he couldn't amplify
we couldn't amplify
you couldn't amplify
they couldn't amplify 	I couldn't be amplifying
you couldn't be amplifying
he couldn't be amplifying
we couldn't be amplifying
you couldn't be amplifying
they couldn't be amplifying	I couldn't have amplified
you couldn't have amplified
he couldn't have amplified
we couldn't have amplified
you couldn't have amplified
they couldn't have amplified	I couldn't have been amplifying
you couldn't have been amplifying
he couldn't have been amplifying
we couldn't have been amplifying
you couldn't have been amplifying
they couldn't have been amplifying	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I amplify?
could you amplify?
could he amplify?
could we amplify?
could you amplify?
could they amplify? 	could I be amplifying?
could you be amplifying?
could he be amplifying?
could we be amplifying?
could you be amplifying?
could they be amplifying? 	could I have amplified?
could you have amplified?
could he have amplified?
could we have amplified?
could you have amplified?
could they have amplified? 	could I have been amplifying?
could you have been amplifying?
could he have been amplifying?
could we have been amplifying?
could you have been amplifying?
could they have been amplifying? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I amplify?
couldn't you amplify?
couldn't he amplify?
couldn't we amplify?
couldn't you amplify?
couldn't they amplify? 	couldn't I be amplifying?
couldn't you be amplifying?
couldn't he be amplifying?
couldn't we be amplifying?
couldn't you be amplifying?
couldn't they be amplifying? 	couldn't I have amplified?
couldn't you have amplified?
couldn't he have amplified?
couldn't we have amplified?
couldn't you have amplified?
couldn't they have amplified? 	couldn't I have been amplifying?
couldn't you have been amplifying?
couldn't he have been amplifying?
couldn't we have been amplifying?
couldn't you have been amplifying?
couldn't they have been amplifying?