I can beckon you can beckon he can beckon we can beckon you can beckon they can beckon
V-ing form
I can be beckoning you can be beckoning he can be beckoning we can be beckoning you can be beckoning they can be beckoning
Perfect
I can have beckoned you can have beckoned he can have beckoned we can have beckoned you can have beckoned they can have beckoned
V-ing perfect
I can have been beckoning you can have been beckoning he can have been beckoning we can have been beckoning you can have been beckoning they can have been beckoning
Negation
Simple form
I can't beckon you can't beckon he can't beckon we can't beckon you can't beckon they can't beckon
V-ing form
I can't be beckoning you can't be beckoning he can't be beckoning we can't be beckoning you can't be beckoning they can't be beckoning
Perfect
I can't have beckoned you can't have beckoned he can't have beckoned we can't have beckoned you can't have beckoned they can't have beckoned
V-ing perfect
I can't have been beckoning you can't have been beckoning he can't have been beckoning we can't have been beckoning you can't have been beckoning they can't have been beckoning
Interrogative form
Simple form
can I beckon? can you beckon? can he beckon? can we beckon? can you beckon? can they beckon?
V-ing form
can I be beckoning? can you be beckoning? can he be beckoning? can we be beckoning? can you be beckoning? can they be beckoning?
Perfect
can I have beckoned? can you have beckoned? can he have beckoned? can we have beckoned? can you have beckoned? can they have beckoned?
V-ing perfect
can I have been beckoning? can you have been beckoning? can he have been beckoning? can we have been beckoning? can you have been beckoning? can they have been beckoning?
Interro-negative form
Simple form
can't I beckon? can't you beckon? can't he beckon? can't we beckon? can't you beckon? can't they beckon?
V-ing form
can't I be beckoning? can't you be beckoning? can't he be beckoning? can't we be beckoning? can't you be beckoning? can't they be beckoning?
Perfect
can't I have beckoned? can't you have beckoned? can't he have beckoned? can't we have beckoned? can't you have beckoned? can't they have beckoned?
V-ing perfect
can't I have been beckoning? can't you have been beckoning? can't he have been beckoning? can't we have been beckoning? can't you have been beckoning? can't they have been beckoning?