can pin
Verbo regular: pin - pinned- pinned

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can pin
you can pin
he can pin
we can pin
you can pin
they can pin 	I can be pinning
you can be pinning
he can be pinning
we can be pinning
you can be pinning
they can be pinning	I can have pinned
you can have pinned
he can have pinned
we can have pinned
you can have pinned
they can have pinned	I can have been pinning
you can have been pinning
he can have been pinning
we can have been pinning
you can have been pinning
they can have been pinning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I can't pin
you can't pin
he can't pin
we can't pin
you can't pin
they can't pin 	I can't be pinning
you can't be pinning
he can't be pinning
we can't be pinning
you can't be pinning
they can't be pinning	I can't have pinned
you can't have pinned
he can't have pinned
we can't have pinned
you can't have pinned
they can't have pinned	I can't have been pinning
you can't have been pinning
he can't have been pinning
we can't have been pinning
you can't have been pinning
they can't have been pinning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can I pin?
can you pin?
can he pin?
can we pin?
can you pin?
can they pin? 	can I be pinning?
can you be pinning?
can he be pinning?
can we be pinning?
can you be pinning?
can they be pinning? 	can I have pinned?
can you have pinned?
can he have pinned?
can we have pinned?
can you have pinned?
can they have pinned? 	can I have been pinning?
can you have been pinning?
can he have been pinning?
can we have been pinning?
can you have been pinning?
can they have been pinning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
can't I pin?
can't you pin?
can't he pin?
can't we pin?
can't you pin?
can't they pin? 	can't I be pinning?
can't you be pinning?
can't he be pinning?
can't we be pinning?
can't you be pinning?
can't they be pinning? 	can't I have pinned?
can't you have pinned?
can't he have pinned?
can't we have pinned?
can't you have pinned?
can't they have pinned? 	can't I have been pinning?
can't you have been pinning?
can't he have been pinning?
can't we have been pinning?
can't you have been pinning?
can't they have been pinning?