English verb conjugation
CAN SABER

Regular verb: saber - sabered - sabered

Affirmation

Simple form	V-ing form
I can saber you can saber she can saber we can saber you can saber they can saber	I can be sabering you can be sabering she can be sabering we can be sabering you can be sabering they can be sabering
Perfect	V-ing perfect
I can have sabered you can have sabered she can have sabered we can have sabered you can have sabered they can have sabered	I can have been sabering you can have been sabering she can have been sabering we can have been sabering you can have been sabering they can have been sabering

Negation

Simple form	V-ing form
I cannot saber you cannot saber she cannot saber we cannot saber you cannot saber they cannot saber	I cannot be sabering you cannot be sabering she cannot be sabering we cannot be sabering you cannot be sabering they cannot be sabering
Perfect	V-ing perfect
I cannot have sabered you cannot have sabered she cannot have sabered we cannot have sabered you cannot have sabered they cannot have sabered	I cannot have been sabering you cannot have been sabering she cannot have been sabering we cannot have been sabering you cannot have been sabering they cannot have been sabering

Interrogative form

Simple form	V-ing form
can I saber? can you saber? can she saber? can we saber? can you saber? can they saber?	can I be sabering? can you be sabering? can she be sabering? can we be sabering? can you be sabering? can they be sabering?
Perfect	V-ing perfect
can I have sabered? can you have sabered? can she have sabered? can we have sabered? can you have sabered? can they have sabered?	can I have been sabering? can you have been sabering? can she have been sabering? can we have been sabering? can you have been sabering? can they have been sabering?

Interro-negative form

Simple form	V-ing form
can I not saber? can you not saber? can she not saber? can we not saber? can you not saber? can they not saber?	can I not be sabering? can you not be sabering? can she not be sabering? can we not be sabering? can you not be sabering? can they not be sabering?
Perfect	V-ing perfect
can I not have sabered? can you not have sabered? can she not have sabered? can we not have sabered? can you not have sabered? can they not have sabered?	can I not have been sabering? can you not have been sabering? can she not have been sabering? can we not have been sabering? can you not have been sabering? can they not have been sabering?