could frenzy
Regular verb: frenzy - frenzied- frenzied

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could frenzy
you could frenzy
he could frenzy
we could frenzy
you could frenzy
they could frenzy 	I could be frenzying
you could be frenzying
he could be frenzying
we could be frenzying
you could be frenzying
they could be frenzying	I could have frenzied
you could have frenzied
he could have frenzied
we could have frenzied
you could have frenzied
they could have frenzied	I could have been frenzying
you could have been frenzying
he could have been frenzying
we could have been frenzying
you could have been frenzying
they could have been frenzying	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't frenzy
you couldn't frenzy
he couldn't frenzy
we couldn't frenzy
you couldn't frenzy
they couldn't frenzy 	I couldn't be frenzying
you couldn't be frenzying
he couldn't be frenzying
we couldn't be frenzying
you couldn't be frenzying
they couldn't be frenzying	I couldn't have frenzied
you couldn't have frenzied
he couldn't have frenzied
we couldn't have frenzied
you couldn't have frenzied
they couldn't have frenzied	I couldn't have been frenzying
you couldn't have been frenzying
he couldn't have been frenzying
we couldn't have been frenzying
you couldn't have been frenzying
they couldn't have been frenzying	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I frenzy?
could you frenzy?
could he frenzy?
could we frenzy?
could you frenzy?
could they frenzy? 	could I be frenzying?
could you be frenzying?
could he be frenzying?
could we be frenzying?
could you be frenzying?
could they be frenzying? 	could I have frenzied?
could you have frenzied?
could he have frenzied?
could we have frenzied?
could you have frenzied?
could they have frenzied? 	could I have been frenzying?
could you have been frenzying?
could he have been frenzying?
could we have been frenzying?
could you have been frenzying?
could they have been frenzying? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I frenzy?
couldn't you frenzy?
couldn't he frenzy?
couldn't we frenzy?
couldn't you frenzy?
couldn't they frenzy? 	couldn't I be frenzying?
couldn't you be frenzying?
couldn't he be frenzying?
couldn't we be frenzying?
couldn't you be frenzying?
couldn't they be frenzying? 	couldn't I have frenzied?
couldn't you have frenzied?
couldn't he have frenzied?
couldn't we have frenzied?
couldn't you have frenzied?
couldn't they have frenzied? 	couldn't I have been frenzying?
couldn't you have been frenzying?
couldn't he have been frenzying?
couldn't we have been frenzying?
couldn't you have been frenzying?
couldn't they have been frenzying?