could trespass
Regular verb: trespass - trespassed- trespassed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could trespass
you could trespass
he could trespass
we could trespass
you could trespass
they could trespass 	I could be trespassing
you could be trespassing
he could be trespassing
we could be trespassing
you could be trespassing
they could be trespassing	I could have trespassed
you could have trespassed
he could have trespassed
we could have trespassed
you could have trespassed
they could have trespassed	I could have been trespassing
you could have been trespassing
he could have been trespassing
we could have been trespassing
you could have been trespassing
they could have been trespassing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not trespass
you could not trespass
he could not trespass
we could not trespass
you could not trespass
they could not trespass 	I could not be trespassing
you could not be trespassing
he could not be trespassing
we could not be trespassing
you could not be trespassing
they could not be trespassing	I could not have trespassed
you could not have trespassed
he could not have trespassed
we could not have trespassed
you could not have trespassed
they could not have trespassed	I could not have been trespassing
you could not have been trespassing
he could not have been trespassing
we could not have been trespassing
you could not have been trespassing
they could not have been trespassing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I trespass?
could you trespass?
could he trespass?
could we trespass?
could you trespass?
could they trespass? 	could I be trespassing?
could you be trespassing?
could he be trespassing?
could we be trespassing?
could you be trespassing?
could they be trespassing? 	could I have trespassed?
could you have trespassed?
could he have trespassed?
could we have trespassed?
could you have trespassed?
could they have trespassed? 	could I have been trespassing?
could you have been trespassing?
could he have been trespassing?
could we have been trespassing?
could you have been trespassing?
could they have been trespassing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not trespass?
could you not trespass?
could he not trespass?
could we not trespass?
could you not trespass?
could they not trespass? 	could I not be trespassing?
could you not be trespassing?
could he not be trespassing?
could we not be trespassing?
could you not be trespassing?
could they not be trespassing? 	could I not have trespassed?
could you not have trespassed?
could he not have trespassed?
could we not have trespassed?
could you not have trespassed?
could they not have trespassed? 	could I not have been trespassing?
could you not have been trespassing?
could he not have been trespassing?
could we not have been trespassing?
could you not have been trespassing?
could they not have been trespassing?