I can buckle you can buckle he can buckle we can buckle you can buckle they can buckle
Forma con V-ing
I can be buckling you can be buckling he can be buckling we can be buckling you can be buckling they can be buckling
Perfecto
I can have buckled you can have buckled he can have buckled we can have buckled you can have buckled they can have buckled
Perfecto con V-ing
I can have been buckling you can have been buckling he can have been buckling we can have been buckling you can have been buckling they can have been buckling
Negación
Forma simple
I cannot buckle you cannot buckle he cannot buckle we cannot buckle you cannot buckle they cannot buckle
Forma con V-ing
I cannot be buckling you cannot be buckling he cannot be buckling we cannot be buckling you cannot be buckling they cannot be buckling
Perfecto
I cannot have buckled you cannot have buckled he cannot have buckled we cannot have buckled you cannot have buckled they cannot have buckled
Perfecto con V-ing
I cannot have been buckling you cannot have been buckling he cannot have been buckling we cannot have been buckling you cannot have been buckling they cannot have been buckling
Forma interrogativa
Forma simple
can I buckle? can you buckle? can he buckle? can we buckle? can you buckle? can they buckle?
Forma con V-ing
can I be buckling? can you be buckling? can he be buckling? can we be buckling? can you be buckling? can they be buckling?
Perfecto
can I have buckled? can you have buckled? can he have buckled? can we have buckled? can you have buckled? can they have buckled?
Perfecto con V-ing
can I have been buckling? can you have been buckling? can he have been buckling? can we have been buckling? can you have been buckling? can they have been buckling?
Forma interro-negativa
Forma simple
can I not buckle? can you not buckle? can he not buckle? can we not buckle? can you not buckle? can they not buckle?
Forma con V-ing
can I not be buckling? can you not be buckling? can he not be buckling? can we not be buckling? can you not be buckling? can they not be buckling?
Perfecto
can I not have buckled? can you not have buckled? can he not have buckled? can we not have buckled? can you not have buckled? can they not have buckled?
Perfecto con V-ing
can I not have been buckling? can you not have been buckling? can he not have been buckling? can we not have been buckling? can you not have been buckling? can they not have been buckling?