could trust
Regular verb: trust - trusted- trusted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could trust
you could trust
he could trust
we could trust
you could trust
they could trust 	I could be trusting
you could be trusting
he could be trusting
we could be trusting
you could be trusting
they could be trusting	I could have trusted
you could have trusted
he could have trusted
we could have trusted
you could have trusted
they could have trusted	I could have been trusting
you could have been trusting
he could have been trusting
we could have been trusting
you could have been trusting
they could have been trusting	

Negation 	
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I could not trust
you could not trust
he could not trust
we could not trust
you could not trust
they could not trust 	I could not be trusting
you could not be trusting
he could not be trusting
we could not be trusting
you could not be trusting
they could not be trusting	I could not have trusted
you could not have trusted
he could not have trusted
we could not have trusted
you could not have trusted
they could not have trusted	I could not have been trusting
you could not have been trusting
he could not have been trusting
we could not have been trusting
you could not have been trusting
they could not have been trusting	

Interrogative form 	
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could I trust?
could you trust?
could he trust?
could we trust?
could you trust?
could they trust? 	could I be trusting?
could you be trusting?
could he be trusting?
could we be trusting?
could you be trusting?
could they be trusting? 	could I have trusted?
could you have trusted?
could he have trusted?
could we have trusted?
could you have trusted?
could they have trusted? 	could I have been trusting?
could you have been trusting?
could he have been trusting?
could we have been trusting?
could you have been trusting?
could they have been trusting? 	

Interro-negative form 	
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could I not trust?
could you not trust?
could he not trust?
could we not trust?
could you not trust?
could they not trust? 	could I not be trusting?
could you not be trusting?
could he not be trusting?
could we not be trusting?
could you not be trusting?
could they not be trusting? 	could I not have trusted?
could you not have trusted?
could he not have trusted?
could we not have trusted?
could you not have trusted?
could they not have trusted? 	could I not have been trusting?
could you not have been trusting?
could he not have been trusting?
could we not have been trusting?
could you not have been trusting?
could they not have been trusting?