could mishandle
Regular verb: mishandle - mishandled- mishandled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could mishandle
you could mishandle
he could mishandle
we could mishandle
you could mishandle
they could mishandle 	I could be mishandling
you could be mishandling
he could be mishandling
we could be mishandling
you could be mishandling
they could be mishandling	I could have mishandled
you could have mishandled
he could have mishandled
we could have mishandled
you could have mishandled
they could have mishandled	I could have been mishandling
you could have been mishandling
he could have been mishandling
we could have been mishandling
you could have been mishandling
they could have been mishandling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't mishandle
you couldn't mishandle
he couldn't mishandle
we couldn't mishandle
you couldn't mishandle
they couldn't mishandle 	I couldn't be mishandling
you couldn't be mishandling
he couldn't be mishandling
we couldn't be mishandling
you couldn't be mishandling
they couldn't be mishandling	I couldn't have mishandled
you couldn't have mishandled
he couldn't have mishandled
we couldn't have mishandled
you couldn't have mishandled
they couldn't have mishandled	I couldn't have been mishandling
you couldn't have been mishandling
he couldn't have been mishandling
we couldn't have been mishandling
you couldn't have been mishandling
they couldn't have been mishandling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I mishandle?
could you mishandle?
could he mishandle?
could we mishandle?
could you mishandle?
could they mishandle? 	could I be mishandling?
could you be mishandling?
could he be mishandling?
could we be mishandling?
could you be mishandling?
could they be mishandling? 	could I have mishandled?
could you have mishandled?
could he have mishandled?
could we have mishandled?
could you have mishandled?
could they have mishandled? 	could I have been mishandling?
could you have been mishandling?
could he have been mishandling?
could we have been mishandling?
could you have been mishandling?
could they have been mishandling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I mishandle?
couldn't you mishandle?
couldn't he mishandle?
couldn't we mishandle?
couldn't you mishandle?
couldn't they mishandle? 	couldn't I be mishandling?
couldn't you be mishandling?
couldn't he be mishandling?
couldn't we be mishandling?
couldn't you be mishandling?
couldn't they be mishandling? 	couldn't I have mishandled?
couldn't you have mishandled?
couldn't he have mishandled?
couldn't we have mishandled?
couldn't you have mishandled?
couldn't they have mishandled? 	couldn't I have been mishandling?
couldn't you have been mishandling?
couldn't he have been mishandling?
couldn't we have been mishandling?
couldn't you have been mishandling?
couldn't they have been mishandling?