English verb conjugation
CAN INCUR

Regular verb: incur - incurred - incurred

Affirmation

Simple form	V-ing form
I can incur you can incur she can incur we can incur you can incur they can incur	I can be incurring you can be incurring she can be incurring we can be incurring you can be incurring they can be incurring
Perfect	V-ing perfect
I can have incurred you can have incurred she can have incurred we can have incurred you can have incurred they can have incurred	I can have been incurring you can have been incurring she can have been incurring we can have been incurring you can have been incurring they can have been incurring

Negation

Simple form	V-ing form
I cannot incur you cannot incur she cannot incur we cannot incur you cannot incur they cannot incur	I cannot be incurring you cannot be incurring she cannot be incurring we cannot be incurring you cannot be incurring they cannot be incurring
Perfect	V-ing perfect
I cannot have incurred you cannot have incurred she cannot have incurred we cannot have incurred you cannot have incurred they cannot have incurred	I cannot have been incurring you cannot have been incurring she cannot have been incurring we cannot have been incurring you cannot have been incurring they cannot have been incurring

Interrogative form

Simple form	V-ing form
can I incur? can you incur? can she incur? can we incur? can you incur? can they incur?	can I be incurring? can you be incurring? can she be incurring? can we be incurring? can you be incurring? can they be incurring?
Perfect	V-ing perfect
can I have incurred? can you have incurred? can she have incurred? can we have incurred? can you have incurred? can they have incurred?	can I have been incurring? can you have been incurring? can she have been incurring? can we have been incurring? can you have been incurring? can they have been incurring?

Interro-negative form

Simple form	V-ing form
can I not incur? can you not incur? can she not incur? can we not incur? can you not incur? can they not incur?	can I not be incurring? can you not be incurring? can she not be incurring? can we not be incurring? can you not be incurring? can they not be incurring?
Perfect	V-ing perfect
can I not have incurred? can you not have incurred? can she not have incurred? can we not have incurred? can you not have incurred? can they not have incurred?	can I not have been incurring? can you not have been incurring? can she not have been incurring? can we not have been incurring? can you not have been incurring? can they not have been incurring?