can precondition
Verbo regular: precondition - preconditioned- preconditioned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can precondition
you can precondition
he can precondition
we can precondition
you can precondition
they can precondition 	I can be preconditioning
you can be preconditioning
he can be preconditioning
we can be preconditioning
you can be preconditioning
they can be preconditioning	I can have preconditioned
you can have preconditioned
he 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
he can have been preconditioning
we can have been preconditioning
you can have been preconditioning
they can have been preconditioning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot precondition
you cannot precondition
he cannot precondition
we cannot precondition
you cannot precondition
they cannot precondition 	I cannot be preconditioning
you cannot be preconditioning
he cannot be preconditioning
we cannot be preconditioning
you cannot be preconditioning
they cannot be preconditioning	I cannot have preconditioned
you cannot have preconditioned
he 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
he cannot have been preconditioning
we cannot have been preconditioning
you cannot have been preconditioning
they cannot have been preconditioning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I precondition?
can you precondition?
can he precondition?
can we precondition?
can you precondition?
can they precondition? 	can I be preconditioning?
can you be preconditioning?
can he be preconditioning?
can we be preconditioning?
can you be preconditioning?
can they be preconditioning? 	can I have preconditioned?
can you have preconditioned?
can he 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 he have been preconditioning?
can we have been preconditioning?
can you have been preconditioning?
can they have been preconditioning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not precondition?
can you not precondition?
can he 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 he not be preconditioning?
can we not be preconditioning?
can you not be preconditioning?
can they not be preconditioning? 	can I not have preconditioned?
can you not have preconditioned?
can he 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 he not have been preconditioning?
can we not have been preconditioning?
can you not have been preconditioning?
can they not have been preconditioning?