could ripple
Verbo regular: ripple - rippled- rippled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could ripple
you could ripple
he could ripple
we could ripple
you could ripple
they could ripple 	I could be rippling
you could be rippling
he could be rippling
we could be rippling
you could be rippling
they could be rippling	I could have rippled
you could have rippled
he could have rippled
we could have rippled
you could have rippled
they could have rippled	I could have been rippling
you could have been rippling
he could have been rippling
we could have been rippling
you could have been rippling
they could have been rippling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not ripple
you could not ripple
he could not ripple
we could not ripple
you could not ripple
they could not ripple 	I could not be rippling
you could not be rippling
he could not be rippling
we could not be rippling
you could not be rippling
they could not be rippling	I could not have rippled
you could not have rippled
he could not have rippled
we could not have rippled
you could not have rippled
they could not have rippled	I could not have been rippling
you could not have been rippling
he could not have been rippling
we could not have been rippling
you could not have been rippling
they could not have been rippling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I ripple?
could you ripple?
could he ripple?
could we ripple?
could you ripple?
could they ripple? 	could I be rippling?
could you be rippling?
could he be rippling?
could we be rippling?
could you be rippling?
could they be rippling? 	could I have rippled?
could you have rippled?
could he have rippled?
could we have rippled?
could you have rippled?
could they have rippled? 	could I have been rippling?
could you have been rippling?
could he have been rippling?
could we have been rippling?
could you have been rippling?
could they have been rippling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not ripple?
could you not ripple?
could he not ripple?
could we not ripple?
could you not ripple?
could they not ripple? 	could I not be rippling?
could you not be rippling?
could he not be rippling?
could we not be rippling?
could you not be rippling?
could they not be rippling? 	could I not have rippled?
could you not have rippled?
could he not have rippled?
could we not have rippled?
could you not have rippled?
could they not have rippled? 	could I not have been rippling?
could you not have been rippling?
could he not have been rippling?
could we not have been rippling?
could you not have been rippling?
could they not have been rippling?