could intrude
Regular verb: intrude - intruded- intruded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could intrude
you could intrude
she could intrude
we could intrude
you could intrude
they could intrude 	I could be intruding
you could be intruding
she could be intruding
we could be intruding
you could be intruding
they could be intruding	I could have intruded
you could have intruded
she could have intruded
we could have intruded
you could have intruded
they could have intruded	I could have been intruding
you could have been intruding
she could have been intruding
we could have been intruding
you could have been intruding
they could have been intruding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't intrude
you couldn't intrude
she couldn't intrude
we couldn't intrude
you couldn't intrude
they couldn't intrude 	I couldn't be intruding
you couldn't be intruding
she couldn't be intruding
we couldn't be intruding
you couldn't be intruding
they couldn't be intruding	I couldn't have intruded
you couldn't have intruded
she couldn't have intruded
we couldn't have intruded
you couldn't have intruded
they couldn't have intruded	I couldn't have been intruding
you couldn't have been intruding
she couldn't have been intruding
we couldn't have been intruding
you couldn't have been intruding
they couldn't have been intruding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I intrude?
could you intrude?
could she intrude?
could we intrude?
could you intrude?
could they intrude? 	could I be intruding?
could you be intruding?
could she be intruding?
could we be intruding?
could you be intruding?
could they be intruding? 	could I have intruded?
could you have intruded?
could she have intruded?
could we have intruded?
could you have intruded?
could they have intruded? 	could I have been intruding?
could you have been intruding?
could she have been intruding?
could we have been intruding?
could you have been intruding?
could they have been intruding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I intrude?
couldn't you intrude?
couldn't she intrude?
couldn't we intrude?
couldn't you intrude?
couldn't they intrude? 	couldn't I be intruding?
couldn't you be intruding?
couldn't she be intruding?
couldn't we be intruding?
couldn't you be intruding?
couldn't they be intruding? 	couldn't I have intruded?
couldn't you have intruded?
couldn't she have intruded?
couldn't we have intruded?
couldn't you have intruded?
couldn't they have intruded? 	couldn't I have been intruding?
couldn't you have been intruding?
couldn't she have been intruding?
couldn't we have been intruding?
couldn't you have been intruding?
couldn't they have been intruding?