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 can't precondition
you can't precondition
he can't precondition
we can't precondition
you can't precondition
they can't precondition 	I can't be preconditioning
you can't be preconditioning
he can't be preconditioning
we can't be preconditioning
you can't be preconditioning
they can't be preconditioning	I can't have preconditioned
you can't have preconditioned
he can't have preconditioned
we can't have preconditioned
you can't have preconditioned
they can't have preconditioned	I can't have been preconditioning
you can't have been preconditioning
he can't have been preconditioning
we can't have been preconditioning
you can't have been preconditioning
they can't 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't I precondition?
can't you precondition?
can't he precondition?
can't we precondition?
can't you precondition?
can't they precondition? 	can't I be preconditioning?
can't you be preconditioning?
can't he be preconditioning?
can't we be preconditioning?
can't you be preconditioning?
can't they be preconditioning? 	can't I have preconditioned?
can't you have preconditioned?
can't he have preconditioned?
can't we have preconditioned?
can't you have preconditioned?
can't they have preconditioned? 	can't I have been preconditioning?
can't you have been preconditioning?
can't he have been preconditioning?
can't we have been preconditioning?
can't you have been preconditioning?
can't they have been preconditioning?