can obtund
Regular verb: obtund - obtunded- obtunded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can obtund
you can obtund
she can obtund
we can obtund
you can obtund
they can obtund 	I can be obtunding
you can be obtunding
she can be obtunding
we can be obtunding
you can be obtunding
they can be obtunding	I can have obtunded
you can have obtunded
she can have obtunded
we can have obtunded
you can have obtunded
they can have obtunded	I can have been obtunding
you can have been obtunding
she can have been obtunding
we can have been obtunding
you can have been obtunding
they can have been obtunding	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't obtund
you can't obtund
she can't obtund
we can't obtund
you can't obtund
they can't obtund 	I can't be obtunding
you can't be obtunding
she can't be obtunding
we can't be obtunding
you can't be obtunding
they can't be obtunding	I can't have obtunded
you can't have obtunded
she can't have obtunded
we can't have obtunded
you can't have obtunded
they can't have obtunded	I can't have been obtunding
you can't have been obtunding
she can't have been obtunding
we can't have been obtunding
you can't have been obtunding
they can't have been obtunding	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I obtund?
can you obtund?
can she obtund?
can we obtund?
can you obtund?
can they obtund? 	can I be obtunding?
can you be obtunding?
can she be obtunding?
can we be obtunding?
can you be obtunding?
can they be obtunding? 	can I have obtunded?
can you have obtunded?
can she have obtunded?
can we have obtunded?
can you have obtunded?
can they have obtunded? 	can I have been obtunding?
can you have been obtunding?
can she have been obtunding?
can we have been obtunding?
can you have been obtunding?
can they have been obtunding? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I obtund?
can't you obtund?
can't she obtund?
can't we obtund?
can't you obtund?
can't they obtund? 	can't I be obtunding?
can't you be obtunding?
can't she be obtunding?
can't we be obtunding?
can't you be obtunding?
can't they be obtunding? 	can't I have obtunded?
can't you have obtunded?
can't she have obtunded?
can't we have obtunded?
can't you have obtunded?
can't they have obtunded? 	can't I have been obtunding?
can't you have been obtunding?
can't she have been obtunding?
can't we have been obtunding?
can't you have been obtunding?
can't they have been obtunding?