can preinvestigate
Verbo regular: preinvestigate - preinvestigated- preinvestigated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can preinvestigate
you can preinvestigate
he can preinvestigate
we can preinvestigate
you can preinvestigate
they can preinvestigate 	I can be preinvestigating
you can be preinvestigating
he can be preinvestigating
we can be preinvestigating
you can be preinvestigating
they can be preinvestigating	I can have preinvestigated
you can have preinvestigated
he can have preinvestigated
we can have preinvestigated
you can have preinvestigated
they can have preinvestigated	I can have been preinvestigating
you can have been preinvestigating
he can have been preinvestigating
we can have been preinvestigating
you can have been preinvestigating
they can have been preinvestigating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot preinvestigate
you cannot preinvestigate
he cannot preinvestigate
we cannot preinvestigate
you cannot preinvestigate
they cannot preinvestigate 	I cannot be preinvestigating
you cannot be preinvestigating
he cannot be preinvestigating
we cannot be preinvestigating
you cannot be preinvestigating
they cannot be preinvestigating	I cannot have preinvestigated
you cannot have preinvestigated
he cannot have preinvestigated
we cannot have preinvestigated
you cannot have preinvestigated
they cannot have preinvestigated	I cannot have been preinvestigating
you cannot have been preinvestigating
he cannot have been preinvestigating
we cannot have been preinvestigating
you cannot have been preinvestigating
they cannot have been preinvestigating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I preinvestigate?
can you preinvestigate?
can he preinvestigate?
can we preinvestigate?
can you preinvestigate?
can they preinvestigate? 	can I be preinvestigating?
can you be preinvestigating?
can he be preinvestigating?
can we be preinvestigating?
can you be preinvestigating?
can they be preinvestigating? 	can I have preinvestigated?
can you have preinvestigated?
can he have preinvestigated?
can we have preinvestigated?
can you have preinvestigated?
can they have preinvestigated? 	can I have been preinvestigating?
can you have been preinvestigating?
can he have been preinvestigating?
can we have been preinvestigating?
can you have been preinvestigating?
can they have been preinvestigating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not preinvestigate?
can you not preinvestigate?
can he not preinvestigate?
can we not preinvestigate?
can you not preinvestigate?
can they not preinvestigate? 	can I not be preinvestigating?
can you not be preinvestigating?
can he not be preinvestigating?
can we not be preinvestigating?
can you not be preinvestigating?
can they not be preinvestigating? 	can I not have preinvestigated?
can you not have preinvestigated?
can he not have preinvestigated?
can we not have preinvestigated?
can you not have preinvestigated?
can they not have preinvestigated? 	can I not have been preinvestigating?
can you not have been preinvestigating?
can he not have been preinvestigating?
can we not have been preinvestigating?
can you not have been preinvestigating?
can they not have been preinvestigating?