I can peck you can peck he can peck we can peck you can peck they can peck
Forma com V-ing
I can be pecking you can be pecking he can be pecking we can be pecking you can be pecking they can be pecking
Perfeito
I can have pecked you can have pecked he can have pecked we can have pecked you can have pecked they can have pecked
Perfeito com V-ing
I can have been pecking you can have been pecking he can have been pecking we can have been pecking you can have been pecking they can have been pecking
Negação
Forma simple
I can't peck you can't peck he can't peck we can't peck you can't peck they can't peck
Forma com V-ing
I can't be pecking you can't be pecking he can't be pecking we can't be pecking you can't be pecking they can't be pecking
Perfeito
I can't have pecked you can't have pecked he can't have pecked we can't have pecked you can't have pecked they can't have pecked
Perfeito com V-ing
I can't have been pecking you can't have been pecking he can't have been pecking we can't have been pecking you can't have been pecking they can't have been pecking
Forma interrogativa
Forma simple
can I peck? can you peck? can he peck? can we peck? can you peck? can they peck?
Forma com V-ing
can I be pecking? can you be pecking? can he be pecking? can we be pecking? can you be pecking? can they be pecking?
Perfeito
can I have pecked? can you have pecked? can he have pecked? can we have pecked? can you have pecked? can they have pecked?
Perfeito com V-ing
can I have been pecking? can you have been pecking? can he have been pecking? can we have been pecking? can you have been pecking? can they have been pecking?
Forma interro-Negação
Forma simple
can't I peck? can't you peck? can't he peck? can't we peck? can't you peck? can't they peck?
Forma com V-ing
can't I be pecking? can't you be pecking? can't he be pecking? can't we be pecking? can't you be pecking? can't they be pecking?
Perfeito
can't I have pecked? can't you have pecked? can't he have pecked? can't we have pecked? can't you have pecked? can't they have pecked?
Perfeito com V-ing
can't I have been pecking? can't you have been pecking? can't he have been pecking? can't we have been pecking? can't you have been pecking? can't they have been pecking?