could trick
Regular verb: trick - tricked- tricked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could trick
you could trick
she could trick
we could trick
you could trick
they could trick 	I could be tricking
you could be tricking
she could be tricking
we could be tricking
you could be tricking
they could be tricking	I could have tricked
you could have tricked
she could have tricked
we could have tricked
you could have tricked
they could have tricked	I could have been tricking
you could have been tricking
she could have been tricking
we could have been tricking
you could have been tricking
they could have been tricking	

Negation 	
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I couldn't trick
you couldn't trick
she couldn't trick
we couldn't trick
you couldn't trick
they couldn't trick 	I couldn't be tricking
you couldn't be tricking
she couldn't be tricking
we couldn't be tricking
you couldn't be tricking
they couldn't be tricking	I couldn't have tricked
you couldn't have tricked
she couldn't have tricked
we couldn't have tricked
you couldn't have tricked
they couldn't have tricked	I couldn't have been tricking
you couldn't have been tricking
she couldn't have been tricking
we couldn't have been tricking
you couldn't have been tricking
they couldn't have been tricking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I trick?
could you trick?
could she trick?
could we trick?
could you trick?
could they trick? 	could I be tricking?
could you be tricking?
could she be tricking?
could we be tricking?
could you be tricking?
could they be tricking? 	could I have tricked?
could you have tricked?
could she have tricked?
could we have tricked?
could you have tricked?
could they have tricked? 	could I have been tricking?
could you have been tricking?
could she have been tricking?
could we have been tricking?
could you have been tricking?
could they have been tricking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I trick?
couldn't you trick?
couldn't she trick?
couldn't we trick?
couldn't you trick?
couldn't they trick? 	couldn't I be tricking?
couldn't you be tricking?
couldn't she be tricking?
couldn't we be tricking?
couldn't you be tricking?
couldn't they be tricking? 	couldn't I have tricked?
couldn't you have tricked?
couldn't she have tricked?
couldn't we have tricked?
couldn't you have tricked?
couldn't they have tricked? 	couldn't I have been tricking?
couldn't you have been tricking?
couldn't she have been tricking?
couldn't we have been tricking?
couldn't you have been tricking?
couldn't they have been tricking?