could express
Verbo regular: express - expressed- expressed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could express
you could express
he could express
we could express
you could express
they could express 	I could be expressing
you could be expressing
he could be expressing
we could be expressing
you could be expressing
they could be expressing	I could have expressed
you could have expressed
he could have expressed
we could have expressed
you could have expressed
they could have expressed	I could have been expressing
you could have been expressing
he could have been expressing
we could have been expressing
you could have been expressing
they could have been expressing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't express
you couldn't express
he couldn't express
we couldn't express
you couldn't express
they couldn't express 	I couldn't be expressing
you couldn't be expressing
he couldn't be expressing
we couldn't be expressing
you couldn't be expressing
they couldn't be expressing	I couldn't have expressed
you couldn't have expressed
he couldn't have expressed
we couldn't have expressed
you couldn't have expressed
they couldn't have expressed	I couldn't have been expressing
you couldn't have been expressing
he couldn't have been expressing
we couldn't have been expressing
you couldn't have been expressing
they couldn't have been expressing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I express?
could you express?
could he express?
could we express?
could you express?
could they express? 	could I be expressing?
could you be expressing?
could he be expressing?
could we be expressing?
could you be expressing?
could they be expressing? 	could I have expressed?
could you have expressed?
could he have expressed?
could we have expressed?
could you have expressed?
could they have expressed? 	could I have been expressing?
could you have been expressing?
could he have been expressing?
could we have been expressing?
could you have been expressing?
could they have been expressing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I express?
couldn't you express?
couldn't he express?
couldn't we express?
couldn't you express?
couldn't they express? 	couldn't I be expressing?
couldn't you be expressing?
couldn't he be expressing?
couldn't we be expressing?
couldn't you be expressing?
couldn't they be expressing? 	couldn't I have expressed?
couldn't you have expressed?
couldn't he have expressed?
couldn't we have expressed?
couldn't you have expressed?
couldn't they have expressed? 	couldn't I have been expressing?
couldn't you have been expressing?
couldn't he have been expressing?
couldn't we have been expressing?
couldn't you have been expressing?
couldn't they have been expressing?