can drop
Verbo regular: drop - dropped- dropped

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can drop
you can drop
she can drop
we can drop
you can drop
they can drop 	I can be dropping
you can be dropping
she can be dropping
we can be dropping
you can be dropping
they can be dropping	I can have dropped
you can have dropped
she can have dropped
we can have dropped
you can have dropped
they can have dropped	I can have been dropping
you can have been dropping
she can have been dropping
we can have been dropping
you can have been dropping
they can have been dropping	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I cannot drop
you cannot drop
she cannot drop
we cannot drop
you cannot drop
they cannot drop 	I cannot be dropping
you cannot be dropping
she cannot be dropping
we cannot be dropping
you cannot be dropping
they cannot be dropping	I cannot have dropped
you cannot have dropped
she cannot have dropped
we cannot have dropped
you cannot have dropped
they cannot have dropped	I cannot have been dropping
you cannot have been dropping
she cannot have been dropping
we cannot have been dropping
you cannot have been dropping
they cannot have been dropping	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I drop?
can you drop?
can she drop?
can we drop?
can you drop?
can they drop? 	can I be dropping?
can you be dropping?
can she be dropping?
can we be dropping?
can you be dropping?
can they be dropping? 	can I have dropped?
can you have dropped?
can she have dropped?
can we have dropped?
can you have dropped?
can they have dropped? 	can I have been dropping?
can you have been dropping?
can she have been dropping?
can we have been dropping?
can you have been dropping?
can they have been dropping? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I not drop?
can you not drop?
can she not drop?
can we not drop?
can you not drop?
can they not drop? 	can I not be dropping?
can you not be dropping?
can she not be dropping?
can we not be dropping?
can you not be dropping?
can they not be dropping? 	can I not have dropped?
can you not have dropped?
can she not have dropped?
can we not have dropped?
can you not have dropped?
can they not have dropped? 	can I not have been dropping?
can you not have been dropping?
can she not have been dropping?
can we not have been dropping?
can you not have been dropping?
can they not have been dropping?