can sanction
Regular verb: sanction - sanctioned- sanctioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can sanction
you can sanction
he can sanction
we can sanction
you can sanction
they can sanction 	I can be sanctioning
you can be sanctioning
he can be sanctioning
we can be sanctioning
you can be sanctioning
they can be sanctioning	I can have sanctioned
you can have sanctioned
he can have sanctioned
we can have sanctioned
you can have sanctioned
they can have sanctioned	I can have been sanctioning
you can have been sanctioning
he can have been sanctioning
we can have been sanctioning
you can have been sanctioning
they can have been sanctioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't sanction
you can't sanction
he can't sanction
we can't sanction
you can't sanction
they can't sanction 	I can't be sanctioning
you can't be sanctioning
he can't be sanctioning
we can't be sanctioning
you can't be sanctioning
they can't be sanctioning	I can't have sanctioned
you can't have sanctioned
he can't have sanctioned
we can't have sanctioned
you can't have sanctioned
they can't have sanctioned	I can't have been sanctioning
you can't have been sanctioning
he can't have been sanctioning
we can't have been sanctioning
you can't have been sanctioning
they can't have been sanctioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I sanction?
can you sanction?
can he sanction?
can we sanction?
can you sanction?
can they sanction? 	can I be sanctioning?
can you be sanctioning?
can he be sanctioning?
can we be sanctioning?
can you be sanctioning?
can they be sanctioning? 	can I have sanctioned?
can you have sanctioned?
can he have sanctioned?
can we have sanctioned?
can you have sanctioned?
can they have sanctioned? 	can I have been sanctioning?
can you have been sanctioning?
can he have been sanctioning?
can we have been sanctioning?
can you have been sanctioning?
can they have been sanctioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I sanction?
can't you sanction?
can't he sanction?
can't we sanction?
can't you sanction?
can't they sanction? 	can't I be sanctioning?
can't you be sanctioning?
can't he be sanctioning?
can't we be sanctioning?
can't you be sanctioning?
can't they be sanctioning? 	can't I have sanctioned?
can't you have sanctioned?
can't he have sanctioned?
can't we have sanctioned?
can't you have sanctioned?
can't they have sanctioned? 	can't I have been sanctioning?
can't you have been sanctioning?
can't he have been sanctioning?
can't we have been sanctioning?
can't you have been sanctioning?
can't they have been sanctioning?