English verb conjugation
CAN BORDER

Regular verb: border - bordered - bordered

Affirmation

Simple form	V-ing form
I can border you can border she can border we can border you can border they can border	I can be bordering you can be bordering she can be bordering we can be bordering you can be bordering they can be bordering
Perfect	V-ing perfect
I can have bordered you can have bordered she can have bordered we can have bordered you can have bordered they can have bordered	I can have been bordering you can have been bordering she can have been bordering we can have been bordering you can have been bordering they can have been bordering

Negation

Simple form	V-ing form
I can't border you can't border she can't border we can't border you can't border they can't border	I can't be bordering you can't be bordering she can't be bordering we can't be bordering you can't be bordering they can't be bordering
Perfect	V-ing perfect
I can't have bordered you can't have bordered she can't have bordered we can't have bordered you can't have bordered they can't have bordered	I can't have been bordering you can't have been bordering she can't have been bordering we can't have been bordering you can't have been bordering they can't have been bordering

Interrogative form

Simple form	V-ing form
can I border? can you border? can she border? can we border? can you border? can they border?	can I be bordering? can you be bordering? can she be bordering? can we be bordering? can you be bordering? can they be bordering?
Perfect	V-ing perfect
can I have bordered? can you have bordered? can she have bordered? can we have bordered? can you have bordered? can they have bordered?	can I have been bordering? can you have been bordering? can she have been bordering? can we have been bordering? can you have been bordering? can they have been bordering?

Interro-negative form

Simple form	V-ing form
can't I border? can't you border? can't she border? can't we border? can't you border? can't they border?	can't I be bordering? can't you be bordering? can't she be bordering? can't we be bordering? can't you be bordering? can't they be bordering?
Perfect	V-ing perfect
can't I have bordered? can't you have bordered? can't she have bordered? can't we have bordered? can't you have bordered? can't they have bordered?	can't I have been bordering? can't you have been bordering? can't she have been bordering? can't we have been bordering? can't you have been bordering? can't they have been bordering?