could react
Regular verb: react - reacted- reacted

Affirmation 	
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I could react
you could react
he could react
we could react
you could react
they could react 	I could be reacting
you could be reacting
he could be reacting
we could be reacting
you could be reacting
they could be reacting	I could have reacted
you could have reacted
he could have reacted
we could have reacted
you could have reacted
they could have reacted	I could have been reacting
you could have been reacting
he could have been reacting
we could have been reacting
you could have been reacting
they could have been reacting	

Negation 	
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I could not react
you could not react
he could not react
we could not react
you could not react
they could not react 	I could not be reacting
you could not be reacting
he could not be reacting
we could not be reacting
you could not be reacting
they could not be reacting	I could not have reacted
you could not have reacted
he could not have reacted
we could not have reacted
you could not have reacted
they could not have reacted	I could not have been reacting
you could not have been reacting
he could not have been reacting
we could not have been reacting
you could not have been reacting
they could not have been reacting	

Interrogative form 	
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could I react?
could you react?
could he react?
could we react?
could you react?
could they react? 	could I be reacting?
could you be reacting?
could he be reacting?
could we be reacting?
could you be reacting?
could they be reacting? 	could I have reacted?
could you have reacted?
could he have reacted?
could we have reacted?
could you have reacted?
could they have reacted? 	could I have been reacting?
could you have been reacting?
could he have been reacting?
could we have been reacting?
could you have been reacting?
could they have been reacting? 	

Interro-negative form 	
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could I not react?
could you not react?
could he not react?
could we not react?
could you not react?
could they not react? 	could I not be reacting?
could you not be reacting?
could he not be reacting?
could we not be reacting?
could you not be reacting?
could they not be reacting? 	could I not have reacted?
could you not have reacted?
could he not have reacted?
could we not have reacted?
could you not have reacted?
could they not have reacted? 	could I not have been reacting?
could you not have been reacting?
could he not have been reacting?
could we not have been reacting?
could you not have been reacting?
could they not have been reacting?