can flash
Verbo regular: flash - flashed- flashed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can flash
you can flash
she can flash
we can flash
you can flash
they can flash 	I can be flashing
you can be flashing
she can be flashing
we can be flashing
you can be flashing
they can be flashing	I can have flashed
you can have flashed
she can have flashed
we can have flashed
you can have flashed
they can have flashed	I can have been flashing
you can have been flashing
she can have been flashing
we can have been flashing
you can have been flashing
they can have been flashing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot flash
you cannot flash
she cannot flash
we cannot flash
you cannot flash
they cannot flash 	I cannot be flashing
you cannot be flashing
she cannot be flashing
we cannot be flashing
you cannot be flashing
they cannot be flashing	I cannot have flashed
you cannot have flashed
she cannot have flashed
we cannot have flashed
you cannot have flashed
they cannot have flashed	I cannot have been flashing
you cannot have been flashing
she cannot have been flashing
we cannot have been flashing
you cannot have been flashing
they cannot have been flashing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I flash?
can you flash?
can she flash?
can we flash?
can you flash?
can they flash? 	can I be flashing?
can you be flashing?
can she be flashing?
can we be flashing?
can you be flashing?
can they be flashing? 	can I have flashed?
can you have flashed?
can she have flashed?
can we have flashed?
can you have flashed?
can they have flashed? 	can I have been flashing?
can you have been flashing?
can she have been flashing?
can we have been flashing?
can you have been flashing?
can they have been flashing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not flash?
can you not flash?
can she not flash?
can we not flash?
can you not flash?
can they not flash? 	can I not be flashing?
can you not be flashing?
can she not be flashing?
can we not be flashing?
can you not be flashing?
can they not be flashing? 	can I not have flashed?
can you not have flashed?
can she not have flashed?
can we not have flashed?
can you not have flashed?
can they not have flashed? 	can I not have been flashing?
can you not have been flashing?
can she not have been flashing?
can we not have been flashing?
can you not have been flashing?
can they not have been flashing?