could beckon
Regular verb: beckon - beckoned- beckoned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could beckon
you could beckon
he could beckon
we could beckon
you could beckon
they could beckon 	I could be beckoning
you could be beckoning
he could be beckoning
we could be beckoning
you could be beckoning
they could be beckoning	I could have beckoned
you could have beckoned
he could have beckoned
we could have beckoned
you could have beckoned
they could have beckoned	I could have been beckoning
you could have been beckoning
he could have been beckoning
we could have been beckoning
you could have been beckoning
they could have been beckoning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't beckon
you couldn't beckon
he couldn't beckon
we couldn't beckon
you couldn't beckon
they couldn't beckon 	I couldn't be beckoning
you couldn't be beckoning
he couldn't be beckoning
we couldn't be beckoning
you couldn't be beckoning
they couldn't be beckoning	I couldn't have beckoned
you couldn't have beckoned
he couldn't have beckoned
we couldn't have beckoned
you couldn't have beckoned
they couldn't have beckoned	I couldn't have been beckoning
you couldn't have been beckoning
he couldn't have been beckoning
we couldn't have been beckoning
you couldn't have been beckoning
they couldn't have been beckoning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I beckon?
could you beckon?
could he beckon?
could we beckon?
could you beckon?
could they beckon? 	could I be beckoning?
could you be beckoning?
could he be beckoning?
could we be beckoning?
could you be beckoning?
could they be beckoning? 	could I have beckoned?
could you have beckoned?
could he have beckoned?
could we have beckoned?
could you have beckoned?
could they have beckoned? 	could I have been beckoning?
could you have been beckoning?
could he have been beckoning?
could we have been beckoning?
could you have been beckoning?
could they have been beckoning? 	

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