could hobnob
Regular verb: hobnob - hobnobbed- hobnobbed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could hobnob
you could hobnob
he could hobnob
we could hobnob
you could hobnob
they could hobnob 	I could be hobnobbing
you could be hobnobbing
he could be hobnobbing
we could be hobnobbing
you could be hobnobbing
they could be hobnobbing	I could have hobnobbed
you could have hobnobbed
he could have hobnobbed
we could have hobnobbed
you could have hobnobbed
they could have hobnobbed	I could have been hobnobbing
you could have been hobnobbing
he could have been hobnobbing
we could have been hobnobbing
you could have been hobnobbing
they could have been hobnobbing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't hobnob
you couldn't hobnob
he couldn't hobnob
we couldn't hobnob
you couldn't hobnob
they couldn't hobnob 	I couldn't be hobnobbing
you couldn't be hobnobbing
he couldn't be hobnobbing
we couldn't be hobnobbing
you couldn't be hobnobbing
they couldn't be hobnobbing	I couldn't have hobnobbed
you couldn't have hobnobbed
he couldn't have hobnobbed
we couldn't have hobnobbed
you couldn't have hobnobbed
they couldn't have hobnobbed	I couldn't have been hobnobbing
you couldn't have been hobnobbing
he couldn't have been hobnobbing
we couldn't have been hobnobbing
you couldn't have been hobnobbing
they couldn't have been hobnobbing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I hobnob?
could you hobnob?
could he hobnob?
could we hobnob?
could you hobnob?
could they hobnob? 	could I be hobnobbing?
could you be hobnobbing?
could he be hobnobbing?
could we be hobnobbing?
could you be hobnobbing?
could they be hobnobbing? 	could I have hobnobbed?
could you have hobnobbed?
could he have hobnobbed?
could we have hobnobbed?
could you have hobnobbed?
could they have hobnobbed? 	could I have been hobnobbing?
could you have been hobnobbing?
could he have been hobnobbing?
could we have been hobnobbing?
could you have been hobnobbing?
could they have been hobnobbing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I hobnob?
couldn't you hobnob?
couldn't he hobnob?
couldn't we hobnob?
couldn't you hobnob?
couldn't they hobnob? 	couldn't I be hobnobbing?
couldn't you be hobnobbing?
couldn't he be hobnobbing?
couldn't we be hobnobbing?
couldn't you be hobnobbing?
couldn't they be hobnobbing? 	couldn't I have hobnobbed?
couldn't you have hobnobbed?
couldn't he have hobnobbed?
couldn't we have hobnobbed?
couldn't you have hobnobbed?
couldn't they have hobnobbed? 	couldn't I have been hobnobbing?
couldn't you have been hobnobbing?
couldn't he have been hobnobbing?
couldn't we have been hobnobbing?
couldn't you have been hobnobbing?
couldn't they have been hobnobbing?