I can flock you can flock she can flock we can flock you can flock they can flock
Forma con V-ing
I can be flocking you can be flocking she can be flocking we can be flocking you can be flocking they can be flocking
Perfecto
I can have flocked you can have flocked she can have flocked we can have flocked you can have flocked they can have flocked
Perfecto con V-ing
I can have been flocking you can have been flocking she can have been flocking we can have been flocking you can have been flocking they can have been flocking
Negación
Forma simple
I can't flock you can't flock she can't flock we can't flock you can't flock they can't flock
Forma con V-ing
I can't be flocking you can't be flocking she can't be flocking we can't be flocking you can't be flocking they can't be flocking
Perfecto
I can't have flocked you can't have flocked she can't have flocked we can't have flocked you can't have flocked they can't have flocked
Perfecto con V-ing
I can't have been flocking you can't have been flocking she can't have been flocking we can't have been flocking you can't have been flocking they can't have been flocking
Forma interrogativa
Forma simple
can I flock? can you flock? can she flock? can we flock? can you flock? can they flock?
Forma con V-ing
can I be flocking? can you be flocking? can she be flocking? can we be flocking? can you be flocking? can they be flocking?
Perfecto
can I have flocked? can you have flocked? can she have flocked? can we have flocked? can you have flocked? can they have flocked?
Perfecto con V-ing
can I have been flocking? can you have been flocking? can she have been flocking? can we have been flocking? can you have been flocking? can they have been flocking?
Forma interro-negativa
Forma simple
can't I flock? can't you flock? can't she flock? can't we flock? can't you flock? can't they flock?
Forma con V-ing
can't I be flocking? can't you be flocking? can't she be flocking? can't we be flocking? can't you be flocking? can't they be flocking?
Perfecto
can't I have flocked? can't you have flocked? can't she have flocked? can't we have flocked? can't you have flocked? can't they have flocked?
Perfecto con V-ing
can't I have been flocking? can't you have been flocking? can't she have been flocking? can't we have been flocking? can't you have been flocking? can't they have been flocking?