English verb conjugation
COULD SANCTION

Regular verb: sanction - sanctioned - sanctioned

Affirmation

Simple form	V-ing form
I could sanction you could sanction she could sanction we could sanction you could sanction they could sanction	I could be sanctioning you could be sanctioning she could be sanctioning we could be sanctioning you could be sanctioning they could be sanctioning
Perfect	V-ing perfect
I could have sanctioned you could have sanctioned she could have sanctioned we could have sanctioned you could have sanctioned they could have sanctioned	I could have been sanctioning you could have been sanctioning she could have been sanctioning we could have been sanctioning you could have been sanctioning they could have been sanctioning

Negation

Simple form	V-ing form
I couldn't sanction you couldn't sanction she couldn't sanction we couldn't sanction you couldn't sanction they couldn't sanction	I couldn't be sanctioning you couldn't be sanctioning she couldn't be sanctioning we couldn't be sanctioning you couldn't be sanctioning they couldn't be sanctioning
Perfect	V-ing perfect
I couldn't have sanctioned you couldn't have sanctioned she couldn't have sanctioned we couldn't have sanctioned you couldn't have sanctioned they couldn't have sanctioned	I couldn't have been sanctioning you couldn't have been sanctioning she couldn't have been sanctioning we couldn't have been sanctioning you couldn't have been sanctioning they couldn't have been sanctioning

Interrogative form

Simple form	V-ing form
could I sanction? could you sanction? could she sanction? could we sanction? could you sanction? could they sanction?	could I be sanctioning? could you be sanctioning? could she be sanctioning? could we be sanctioning? could you be sanctioning? could they be sanctioning?
Perfect	V-ing perfect
could I have sanctioned? could you have sanctioned? could she have sanctioned? could we have sanctioned? could you have sanctioned? could they have sanctioned?	could I have been sanctioning? could you have been sanctioning? could she have been sanctioning? could we have been sanctioning? could you have been sanctioning? could they have been sanctioning?

Interro-negative form

Simple form	V-ing form
couldn't I sanction? couldn't you sanction? couldn't she sanction? couldn't we sanction? couldn't you sanction? couldn't they sanction?	couldn't I be sanctioning? couldn't you be sanctioning? couldn't she be sanctioning? couldn't we be sanctioning? couldn't you be sanctioning? couldn't they be sanctioning?
Perfect	V-ing perfect
couldn't I have sanctioned? couldn't you have sanctioned? couldn't she have sanctioned? couldn't we have sanctioned? couldn't you have sanctioned? couldn't they have sanctioned?	couldn't I have been sanctioning? couldn't you have been sanctioning? couldn't she have been sanctioning? couldn't we have been sanctioning? couldn't you have been sanctioning? couldn't they have been sanctioning?