can require
Verbo regular: require - required- required

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can require
you can require
he can require
we can require
you can require
they can require 	I can be requiring
you can be requiring
he can be requiring
we can be requiring
you can be requiring
they can be requiring	I can have required
you can have required
he can have required
we can have required
you can have required
they can have required	I can have been requiring
you can have been requiring
he can have been requiring
we can have been requiring
you can have been requiring
they can have been requiring	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't require
you can't require
he can't require
we can't require
you can't require
they can't require 	I can't be requiring
you can't be requiring
he can't be requiring
we can't be requiring
you can't be requiring
they can't be requiring	I can't have required
you can't have required
he can't have required
we can't have required
you can't have required
they can't have required	I can't have been requiring
you can't have been requiring
he can't have been requiring
we can't have been requiring
you can't have been requiring
they can't have been requiring	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I require?
can you require?
can he require?
can we require?
can you require?
can they require? 	can I be requiring?
can you be requiring?
can he be requiring?
can we be requiring?
can you be requiring?
can they be requiring? 	can I have required?
can you have required?
can he have required?
can we have required?
can you have required?
can they have required? 	can I have been requiring?
can you have been requiring?
can he have been requiring?
can we have been requiring?
can you have been requiring?
can they have been requiring? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I require?
can't you require?
can't he require?
can't we require?
can't you require?
can't they require? 	can't I be requiring?
can't you be requiring?
can't he be requiring?
can't we be requiring?
can't you be requiring?
can't they be requiring? 	can't I have required?
can't you have required?
can't he have required?
can't we have required?
can't you have required?
can't they have required? 	can't I have been requiring?
can't you have been requiring?
can't he have been requiring?
can't we have been requiring?
can't you have been requiring?
can't they have been requiring?