English verb conjugation
CAN INCURVE

Regular verb: incurve - incurved - incurved

Affirmation

Simple form	V-ing form
I can incurve you can incurve he can incurve we can incurve you can incurve they can incurve	I can be incurving you can be incurving he can be incurving we can be incurving you can be incurving they can be incurving
Perfect	V-ing perfect
I can have incurved you can have incurved he can have incurved we can have incurved you can have incurved they can have incurved	I can have been incurving you can have been incurving he can have been incurving we can have been incurving you can have been incurving they can have been incurving

Negation

Simple form	V-ing form
I cannot incurve you cannot incurve he cannot incurve we cannot incurve you cannot incurve they cannot incurve	I cannot be incurving you cannot be incurving he cannot be incurving we cannot be incurving you cannot be incurving they cannot be incurving
Perfect	V-ing perfect
I cannot have incurved you cannot have incurved he cannot have incurved we cannot have incurved you cannot have incurved they cannot have incurved	I cannot have been incurving you cannot have been incurving he cannot have been incurving we cannot have been incurving you cannot have been incurving they cannot have been incurving

Interrogative form

Simple form	V-ing form
can I incurve? can you incurve? can he incurve? can we incurve? can you incurve? can they incurve?	can I be incurving? can you be incurving? can he be incurving? can we be incurving? can you be incurving? can they be incurving?
Perfect	V-ing perfect
can I have incurved? can you have incurved? can he have incurved? can we have incurved? can you have incurved? can they have incurved?	can I have been incurving? can you have been incurving? can he have been incurving? can we have been incurving? can you have been incurving? can they have been incurving?

Interro-negative form

Simple form	V-ing form
can I not incurve? can you not incurve? can he not incurve? can we not incurve? can you not incurve? can they not incurve?	can I not be incurving? can you not be incurving? can he not be incurving? can we not be incurving? can you not be incurving? can they not be incurving?
Perfect	V-ing perfect
can I not have incurved? can you not have incurved? can he not have incurved? can we not have incurved? can you not have incurved? can they not have incurved?	can I not have been incurving? can you not have been incurving? can he not have been incurving? can we not have been incurving? can you not have been incurving? can they not have been incurving?