can speck
Verbo regular: speck - specked- specked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can speck
you can speck
she can speck
we can speck
you can speck
they can speck 	I can be specking
you can be specking
she can be specking
we can be specking
you can be specking
they can be specking	I can have specked
you can have specked
she can have specked
we can have specked
you can have specked
they can have specked	I can have been specking
you can have been specking
she can have been specking
we can have been specking
you can have been specking
they can have been specking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot speck
you cannot speck
she cannot speck
we cannot speck
you cannot speck
they cannot speck 	I cannot be specking
you cannot be specking
she cannot be specking
we cannot be specking
you cannot be specking
they cannot be specking	I cannot have specked
you cannot have specked
she cannot have specked
we cannot have specked
you cannot have specked
they cannot have specked	I cannot have been specking
you cannot have been specking
she cannot have been specking
we cannot have been specking
you cannot have been specking
they cannot have been specking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I speck?
can you speck?
can she speck?
can we speck?
can you speck?
can they speck? 	can I be specking?
can you be specking?
can she be specking?
can we be specking?
can you be specking?
can they be specking? 	can I have specked?
can you have specked?
can she have specked?
can we have specked?
can you have specked?
can they have specked? 	can I have been specking?
can you have been specking?
can she have been specking?
can we have been specking?
can you have been specking?
can they have been specking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not speck?
can you not speck?
can she not speck?
can we not speck?
can you not speck?
can they not speck? 	can I not be specking?
can you not be specking?
can she not be specking?
can we not be specking?
can you not be specking?
can they not be specking? 	can I not have specked?
can you not have specked?
can she not have specked?
can we not have specked?
can you not have specked?
can they not have specked? 	can I not have been specking?
can you not have been specking?
can she not have been specking?
can we not have been specking?
can you not have been specking?
can they not have been specking?