could notice
Verbo regular: notice - noticed- noticed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could notice
you could notice
she could notice
we could notice
you could notice
they could notice 	I could be noticing
you could be noticing
she could be noticing
we could be noticing
you could be noticing
they could be noticing	I could have noticed
you could have noticed
she could have noticed
we could have noticed
you could have noticed
they could have noticed	I could have been noticing
you could have been noticing
she could have been noticing
we could have been noticing
you could have been noticing
they could have been noticing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't notice
you couldn't notice
she couldn't notice
we couldn't notice
you couldn't notice
they couldn't notice 	I couldn't be noticing
you couldn't be noticing
she couldn't be noticing
we couldn't be noticing
you couldn't be noticing
they couldn't be noticing	I couldn't have noticed
you couldn't have noticed
she couldn't have noticed
we couldn't have noticed
you couldn't have noticed
they couldn't have noticed	I couldn't have been noticing
you couldn't have been noticing
she couldn't have been noticing
we couldn't have been noticing
you couldn't have been noticing
they couldn't have been noticing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I notice?
could you notice?
could she notice?
could we notice?
could you notice?
could they notice? 	could I be noticing?
could you be noticing?
could she be noticing?
could we be noticing?
could you be noticing?
could they be noticing? 	could I have noticed?
could you have noticed?
could she have noticed?
could we have noticed?
could you have noticed?
could they have noticed? 	could I have been noticing?
could you have been noticing?
could she have been noticing?
could we have been noticing?
could you have been noticing?
could they have been noticing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I notice?
couldn't you notice?
couldn't she notice?
couldn't we notice?
couldn't you notice?
couldn't they notice? 	couldn't I be noticing?
couldn't you be noticing?
couldn't she be noticing?
couldn't we be noticing?
couldn't you be noticing?
couldn't they be noticing? 	couldn't I have noticed?
couldn't you have noticed?
couldn't she have noticed?
couldn't we have noticed?
couldn't you have noticed?
couldn't they have noticed? 	couldn't I have been noticing?
couldn't you have been noticing?
couldn't she have been noticing?
couldn't we have been noticing?
couldn't you have been noticing?
couldn't they have been noticing?