could mountebank
Regular verb: mountebank - mountebanked- mountebanked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could mountebank
you could mountebank
he could mountebank
we could mountebank
you could mountebank
they could mountebank 	I could be mountebanking
you could be mountebanking
he could be mountebanking
we could be mountebanking
you could be mountebanking
they could be mountebanking	I could have mountebanked
you could have mountebanked
he could have mountebanked
we could have mountebanked
you could have mountebanked
they could have mountebanked	I could have been mountebanking
you could have been mountebanking
he could have been mountebanking
we could have been mountebanking
you could have been mountebanking
they could have been mountebanking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't mountebank
you couldn't mountebank
he couldn't mountebank
we couldn't mountebank
you couldn't mountebank
they couldn't mountebank 	I couldn't be mountebanking
you couldn't be mountebanking
he couldn't be mountebanking
we couldn't be mountebanking
you couldn't be mountebanking
they couldn't be mountebanking	I couldn't have mountebanked
you couldn't have mountebanked
he couldn't have mountebanked
we couldn't have mountebanked
you couldn't have mountebanked
they couldn't have mountebanked	I couldn't have been mountebanking
you couldn't have been mountebanking
he couldn't have been mountebanking
we couldn't have been mountebanking
you couldn't have been mountebanking
they couldn't have been mountebanking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I mountebank?
could you mountebank?
could he mountebank?
could we mountebank?
could you mountebank?
could they mountebank? 	could I be mountebanking?
could you be mountebanking?
could he be mountebanking?
could we be mountebanking?
could you be mountebanking?
could they be mountebanking? 	could I have mountebanked?
could you have mountebanked?
could he have mountebanked?
could we have mountebanked?
could you have mountebanked?
could they have mountebanked? 	could I have been mountebanking?
could you have been mountebanking?
could he have been mountebanking?
could we have been mountebanking?
could you have been mountebanking?
could they have been mountebanking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I mountebank?
couldn't you mountebank?
couldn't he mountebank?
couldn't we mountebank?
couldn't you mountebank?
couldn't they mountebank? 	couldn't I be mountebanking?
couldn't you be mountebanking?
couldn't he be mountebanking?
couldn't we be mountebanking?
couldn't you be mountebanking?
couldn't they be mountebanking? 	couldn't I have mountebanked?
couldn't you have mountebanked?
couldn't he have mountebanked?
couldn't we have mountebanked?
couldn't you have mountebanked?
couldn't they have mountebanked? 	couldn't I have been mountebanking?
couldn't you have been mountebanking?
couldn't he have been mountebanking?
couldn't we have been mountebanking?
couldn't you have been mountebanking?
couldn't they have been mountebanking?