I can supple you can supple he can supple we can supple you can supple they can supple
V-ing form
I can be suppling you can be suppling he can be suppling we can be suppling you can be suppling they can be suppling
Perfect
I can have suppled you can have suppled he can have suppled we can have suppled you can have suppled they can have suppled
V-ing perfect
I can have been suppling you can have been suppling he can have been suppling we can have been suppling you can have been suppling they can have been suppling
Negation
Simple form
I cannot supple you cannot supple he cannot supple we cannot supple you cannot supple they cannot supple
V-ing form
I cannot be suppling you cannot be suppling he cannot be suppling we cannot be suppling you cannot be suppling they cannot be suppling
Perfect
I cannot have suppled you cannot have suppled he cannot have suppled we cannot have suppled you cannot have suppled they cannot have suppled
V-ing perfect
I cannot have been suppling you cannot have been suppling he cannot have been suppling we cannot have been suppling you cannot have been suppling they cannot have been suppling
Interrogative form
Simple form
can I supple? can you supple? can he supple? can we supple? can you supple? can they supple?
V-ing form
can I be suppling? can you be suppling? can he be suppling? can we be suppling? can you be suppling? can they be suppling?
Perfect
can I have suppled? can you have suppled? can he have suppled? can we have suppled? can you have suppled? can they have suppled?
V-ing perfect
can I have been suppling? can you have been suppling? can he have been suppling? can we have been suppling? can you have been suppling? can they have been suppling?
Interro-negative form
Simple form
can I not supple? can you not supple? can he not supple? can we not supple? can you not supple? can they not supple?
V-ing form
can I not be suppling? can you not be suppling? can he not be suppling? can we not be suppling? can you not be suppling? can they not be suppling?
Perfect
can I not have suppled? can you not have suppled? can he not have suppled? can we not have suppled? can you not have suppled? can they not have suppled?
V-ing perfect
can I not have been suppling? can you not have been suppling? can he not have been suppling? can we not have been suppling? can you not have been suppling? can they not have been suppling?