can obtrude
Regular verb: obtrude - obtruded- obtruded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can obtrude
you can obtrude
he can obtrude
we can obtrude
you can obtrude
they can obtrude 	I can be obtruding
you can be obtruding
he can be obtruding
we can be obtruding
you can be obtruding
they can be obtruding	I can have obtruded
you can have obtruded
he can have obtruded
we can have obtruded
you can have obtruded
they can have obtruded	I can have been obtruding
you can have been obtruding
he can have been obtruding
we can have been obtruding
you can have been obtruding
they can have been obtruding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't obtrude
you can't obtrude
he can't obtrude
we can't obtrude
you can't obtrude
they can't obtrude 	I can't be obtruding
you can't be obtruding
he can't be obtruding
we can't be obtruding
you can't be obtruding
they can't be obtruding	I can't have obtruded
you can't have obtruded
he can't have obtruded
we can't have obtruded
you can't have obtruded
they can't have obtruded	I can't have been obtruding
you can't have been obtruding
he can't have been obtruding
we can't have been obtruding
you can't have been obtruding
they can't have been obtruding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I obtrude?
can you obtrude?
can he obtrude?
can we obtrude?
can you obtrude?
can they obtrude? 	can I be obtruding?
can you be obtruding?
can he be obtruding?
can we be obtruding?
can you be obtruding?
can they be obtruding? 	can I have obtruded?
can you have obtruded?
can he have obtruded?
can we have obtruded?
can you have obtruded?
can they have obtruded? 	can I have been obtruding?
can you have been obtruding?
can he have been obtruding?
can we have been obtruding?
can you have been obtruding?
can they have been obtruding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I obtrude?
can't you obtrude?
can't he obtrude?
can't we obtrude?
can't you obtrude?
can't they obtrude? 	can't I be obtruding?
can't you be obtruding?
can't he be obtruding?
can't we be obtruding?
can't you be obtruding?
can't they be obtruding? 	can't I have obtruded?
can't you have obtruded?
can't he have obtruded?
can't we have obtruded?
can't you have obtruded?
can't they have obtruded? 	can't I have been obtruding?
can't you have been obtruding?
can't he have been obtruding?
can't we have been obtruding?
can't you have been obtruding?
can't they have been obtruding?