can pebble
Verbo regular: pebble - pebbled- pebbled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can pebble
you can pebble
she can pebble
we can pebble
you can pebble
they can pebble 	I can be pebbling
you can be pebbling
she can be pebbling
we can be pebbling
you can be pebbling
they can be pebbling	I can have pebbled
you can have pebbled
she can have pebbled
we can have pebbled
you can have pebbled
they can have pebbled	I can have been pebbling
you can have been pebbling
she can have been pebbling
we can have been pebbling
you can have been pebbling
they can have been pebbling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot pebble
you cannot pebble
she cannot pebble
we cannot pebble
you cannot pebble
they cannot pebble 	I cannot be pebbling
you cannot be pebbling
she cannot be pebbling
we cannot be pebbling
you cannot be pebbling
they cannot be pebbling	I cannot have pebbled
you cannot have pebbled
she cannot have pebbled
we cannot have pebbled
you cannot have pebbled
they cannot have pebbled	I cannot have been pebbling
you cannot have been pebbling
she cannot have been pebbling
we cannot have been pebbling
you cannot have been pebbling
they cannot have been pebbling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I pebble?
can you pebble?
can she pebble?
can we pebble?
can you pebble?
can they pebble? 	can I be pebbling?
can you be pebbling?
can she be pebbling?
can we be pebbling?
can you be pebbling?
can they be pebbling? 	can I have pebbled?
can you have pebbled?
can she have pebbled?
can we have pebbled?
can you have pebbled?
can they have pebbled? 	can I have been pebbling?
can you have been pebbling?
can she have been pebbling?
can we have been pebbling?
can you have been pebbling?
can they have been pebbling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not pebble?
can you not pebble?
can she not pebble?
can we not pebble?
can you not pebble?
can they not pebble? 	can I not be pebbling?
can you not be pebbling?
can she not be pebbling?
can we not be pebbling?
can you not be pebbling?
can they not be pebbling? 	can I not have pebbled?
can you not have pebbled?
can she not have pebbled?
can we not have pebbled?
can you not have pebbled?
can they not have pebbled? 	can I not have been pebbling?
can you not have been pebbling?
can she not have been pebbling?
can we not have been pebbling?
can you not have been pebbling?
can they not have been pebbling?