can flunk
Verbo regular: flunk - flunked- flunked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can flunk
you can flunk
he can flunk
we can flunk
you can flunk
they can flunk 	I can be flunking
you can be flunking
he can be flunking
we can be flunking
you can be flunking
they can be flunking	I can have flunked
you can have flunked
he can have flunked
we can have flunked
you can have flunked
they can have flunked	I can have been flunking
you can have been flunking
he can have been flunking
we can have been flunking
you can have been flunking
they can have been flunking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot flunk
you cannot flunk
he cannot flunk
we cannot flunk
you cannot flunk
they cannot flunk 	I cannot be flunking
you cannot be flunking
he cannot be flunking
we cannot be flunking
you cannot be flunking
they cannot be flunking	I cannot have flunked
you cannot have flunked
he cannot have flunked
we cannot have flunked
you cannot have flunked
they cannot have flunked	I cannot have been flunking
you cannot have been flunking
he cannot have been flunking
we cannot have been flunking
you cannot have been flunking
they cannot have been flunking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I flunk?
can you flunk?
can he flunk?
can we flunk?
can you flunk?
can they flunk? 	can I be flunking?
can you be flunking?
can he be flunking?
can we be flunking?
can you be flunking?
can they be flunking? 	can I have flunked?
can you have flunked?
can he have flunked?
can we have flunked?
can you have flunked?
can they have flunked? 	can I have been flunking?
can you have been flunking?
can he have been flunking?
can we have been flunking?
can you have been flunking?
can they have been flunking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not flunk?
can you not flunk?
can he not flunk?
can we not flunk?
can you not flunk?
can they not flunk? 	can I not be flunking?
can you not be flunking?
can he not be flunking?
can we not be flunking?
can you not be flunking?
can they not be flunking? 	can I not have flunked?
can you not have flunked?
can he not have flunked?
can we not have flunked?
can you not have flunked?
can they not have flunked? 	can I not have been flunking?
can you not have been flunking?
can he not have been flunking?
can we not have been flunking?
can you not have been flunking?
can they not have been flunking?