can underachieve
Verbo regular: underachieve - underachieved- underachieved

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can underachieve
you can underachieve
he can underachieve
we can underachieve
you can underachieve
they can underachieve 	I can be underachieving
you can be underachieving
he can be underachieving
we can be underachieving
you can be underachieving
they can be underachieving	I can have underachieved
you can have underachieved
he can have underachieved
we can have underachieved
you can have underachieved
they can have underachieved	I can have been underachieving
you can have been underachieving
he can have been underachieving
we can have been underachieving
you can have been underachieving
they can have been underachieving	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot underachieve
you cannot underachieve
he cannot underachieve
we cannot underachieve
you cannot underachieve
they cannot underachieve 	I cannot be underachieving
you cannot be underachieving
he cannot be underachieving
we cannot be underachieving
you cannot be underachieving
they cannot be underachieving	I cannot have underachieved
you cannot have underachieved
he cannot have underachieved
we cannot have underachieved
you cannot have underachieved
they cannot have underachieved	I cannot have been underachieving
you cannot have been underachieving
he cannot have been underachieving
we cannot have been underachieving
you cannot have been underachieving
they cannot have been underachieving	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I underachieve?
can you underachieve?
can he underachieve?
can we underachieve?
can you underachieve?
can they underachieve? 	can I be underachieving?
can you be underachieving?
can he be underachieving?
can we be underachieving?
can you be underachieving?
can they be underachieving? 	can I have underachieved?
can you have underachieved?
can he have underachieved?
can we have underachieved?
can you have underachieved?
can they have underachieved? 	can I have been underachieving?
can you have been underachieving?
can he have been underachieving?
can we have been underachieving?
can you have been underachieving?
can they have been underachieving? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not underachieve?
can you not underachieve?
can he not underachieve?
can we not underachieve?
can you not underachieve?
can they not underachieve? 	can I not be underachieving?
can you not be underachieving?
can he not be underachieving?
can we not be underachieving?
can you not be underachieving?
can they not be underachieving? 	can I not have underachieved?
can you not have underachieved?
can he not have underachieved?
can we not have underachieved?
can you not have underachieved?
can they not have underachieved? 	can I not have been underachieving?
can you not have been underachieving?
can he not have been underachieving?
can we not have been underachieving?
can you not have been underachieving?
can they not have been underachieving?