English verb conjugation
CAN PRECONDITION

Regular verb: precondition - preconditioned - preconditioned

Affirmation

Simple form	V-ing form
I can precondition you can precondition she can precondition we can precondition you can precondition they can precondition	I can be preconditioning you can be preconditioning she can be preconditioning we can be preconditioning you can be preconditioning they can be preconditioning
Perfect	V-ing perfect
I can have preconditioned you can have preconditioned she can have preconditioned we can have preconditioned you can have preconditioned they can have preconditioned	I can have been preconditioning you can have been preconditioning she can have been preconditioning we can have been preconditioning you can have been preconditioning they can have been preconditioning

Negation

Simple form	V-ing form
I cannot precondition you cannot precondition she cannot precondition we cannot precondition you cannot precondition they cannot precondition	I cannot be preconditioning you cannot be preconditioning she cannot be preconditioning we cannot be preconditioning you cannot be preconditioning they cannot be preconditioning
Perfect	V-ing perfect
I cannot have preconditioned you cannot have preconditioned she cannot have preconditioned we cannot have preconditioned you cannot have preconditioned they cannot have preconditioned	I cannot have been preconditioning you cannot have been preconditioning she cannot have been preconditioning we cannot have been preconditioning you cannot have been preconditioning they cannot have been preconditioning

Interrogative form

Simple form	V-ing form
can I precondition? can you precondition? can she precondition? can we precondition? can you precondition? can they precondition?	can I be preconditioning? can you be preconditioning? can she be preconditioning? can we be preconditioning? can you be preconditioning? can they be preconditioning?
Perfect	V-ing perfect
can I have preconditioned? can you have preconditioned? can she have preconditioned? can we have preconditioned? can you have preconditioned? can they have preconditioned?	can I have been preconditioning? can you have been preconditioning? can she have been preconditioning? can we have been preconditioning? can you have been preconditioning? can they have been preconditioning?

Interro-negative form

Simple form	V-ing form
can I not precondition? can you not precondition? can she not precondition? can we not precondition? can you not precondition? can they not precondition?	can I not be preconditioning? can you not be preconditioning? can she not be preconditioning? can we not be preconditioning? can you not be preconditioning? can they not be preconditioning?
Perfect	V-ing perfect
can I not have preconditioned? can you not have preconditioned? can she not have preconditioned? can we not have preconditioned? can you not have preconditioned? can they not have preconditioned?	can I not have been preconditioning? can you not have been preconditioning? can she not have been preconditioning? can we not have been preconditioning? can you not have been preconditioning? can they not have been preconditioning?