could ponder
Verbo regular: ponder - pondered- pondered

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could ponder
you could ponder
he could ponder
we could ponder
you could ponder
they could ponder 	I could be pondering
you could be pondering
he could be pondering
we could be pondering
you could be pondering
they could be pondering	I could have pondered
you could have pondered
he could have pondered
we could have pondered
you could have pondered
they could have pondered	I could have been pondering
you could have been pondering
he could have been pondering
we could have been pondering
you could have been pondering
they could have been pondering	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't ponder
you couldn't ponder
he couldn't ponder
we couldn't ponder
you couldn't ponder
they couldn't ponder 	I couldn't be pondering
you couldn't be pondering
he couldn't be pondering
we couldn't be pondering
you couldn't be pondering
they couldn't be pondering	I couldn't have pondered
you couldn't have pondered
he couldn't have pondered
we couldn't have pondered
you couldn't have pondered
they couldn't have pondered	I couldn't have been pondering
you couldn't have been pondering
he couldn't have been pondering
we couldn't have been pondering
you couldn't have been pondering
they couldn't have been pondering	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I ponder?
could you ponder?
could he ponder?
could we ponder?
could you ponder?
could they ponder? 	could I be pondering?
could you be pondering?
could he be pondering?
could we be pondering?
could you be pondering?
could they be pondering? 	could I have pondered?
could you have pondered?
could he have pondered?
could we have pondered?
could you have pondered?
could they have pondered? 	could I have been pondering?
could you have been pondering?
could he have been pondering?
could we have been pondering?
could you have been pondering?
could they have been pondering? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I ponder?
couldn't you ponder?
couldn't he ponder?
couldn't we ponder?
couldn't you ponder?
couldn't they ponder? 	couldn't I be pondering?
couldn't you be pondering?
couldn't he be pondering?
couldn't we be pondering?
couldn't you be pondering?
couldn't they be pondering? 	couldn't I have pondered?
couldn't you have pondered?
couldn't he have pondered?
couldn't we have pondered?
couldn't you have pondered?
couldn't they have pondered? 	couldn't I have been pondering?
couldn't you have been pondering?
couldn't he have been pondering?
couldn't we have been pondering?
couldn't you have been pondering?
couldn't they have been pondering?