can teach
Verbo irregular: teach - taught- taught

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can teach
you can teach
he can teach
we can teach
you can teach
they can teach 	I can be teaching
you can be teaching
he can be teaching
we can be teaching
you can be teaching
they can be teaching	I can have taught
you can have taught
he can have taught
we can have taught
you can have taught
they can have taught	I can have been teaching
you can have been teaching
he can have been teaching
we can have been teaching
you can have been teaching
they can have been teaching	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I cannot teach
you cannot teach
he cannot teach
we cannot teach
you cannot teach
they cannot teach 	I cannot be teaching
you cannot be teaching
he cannot be teaching
we cannot be teaching
you cannot be teaching
they cannot be teaching	I cannot have taught
you cannot have taught
he cannot have taught
we cannot have taught
you cannot have taught
they cannot have taught	I cannot have been teaching
you cannot have been teaching
he cannot have been teaching
we cannot have been teaching
you cannot have been teaching
they cannot have been teaching	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I teach?
can you teach?
can he teach?
can we teach?
can you teach?
can they teach? 	can I be teaching?
can you be teaching?
can he be teaching?
can we be teaching?
can you be teaching?
can they be teaching? 	can I have taught?
can you have taught?
can he have taught?
can we have taught?
can you have taught?
can they have taught? 	can I have been teaching?
can you have been teaching?
can he have been teaching?
can we have been teaching?
can you have been teaching?
can they have been teaching? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I not teach?
can you not teach?
can he not teach?
can we not teach?
can you not teach?
can they not teach? 	can I not be teaching?
can you not be teaching?
can he not be teaching?
can we not be teaching?
can you not be teaching?
can they not be teaching? 	can I not have taught?
can you not have taught?
can he not have taught?
can we not have taught?
can you not have taught?
can they not have taught? 	can I not have been teaching?
can you not have been teaching?
can he not have been teaching?
can we not have been teaching?
can you not have been teaching?
can they not have been teaching?