could escalate
Verbo regular: escalate - escalated- escalated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could escalate
you could escalate
he could escalate
we could escalate
you could escalate
they could escalate 	I could be escalating
you could be escalating
he could be escalating
we could be escalating
you could be escalating
they could be escalating	I could have escalated
you could have escalated
he could have escalated
we could have escalated
you could have escalated
they could have escalated	I could have been escalating
you could have been escalating
he could have been escalating
we could have been escalating
you could have been escalating
they could have been escalating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not escalate
you could not escalate
he could not escalate
we could not escalate
you could not escalate
they could not escalate 	I could not be escalating
you could not be escalating
he could not be escalating
we could not be escalating
you could not be escalating
they could not be escalating	I could not have escalated
you could not have escalated
he could not have escalated
we could not have escalated
you could not have escalated
they could not have escalated	I could not have been escalating
you could not have been escalating
he could not have been escalating
we could not have been escalating
you could not have been escalating
they could not have been escalating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I escalate?
could you escalate?
could he escalate?
could we escalate?
could you escalate?
could they escalate? 	could I be escalating?
could you be escalating?
could he be escalating?
could we be escalating?
could you be escalating?
could they be escalating? 	could I have escalated?
could you have escalated?
could he have escalated?
could we have escalated?
could you have escalated?
could they have escalated? 	could I have been escalating?
could you have been escalating?
could he have been escalating?
could we have been escalating?
could you have been escalating?
could they have been escalating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not escalate?
could you not escalate?
could he not escalate?
could we not escalate?
could you not escalate?
could they not escalate? 	could I not be escalating?
could you not be escalating?
could he not be escalating?
could we not be escalating?
could you not be escalating?
could they not be escalating? 	could I not have escalated?
could you not have escalated?
could he not have escalated?
could we not have escalated?
could you not have escalated?
could they not have escalated? 	could I not have been escalating?
could you not have been escalating?
could he not have been escalating?
could we not have been escalating?
could you not have been escalating?
could they not have been escalating?