could misdiagnose
Regular verb: misdiagnose - misdiagnosed- misdiagnosed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could misdiagnose
you could misdiagnose
he could misdiagnose
we could misdiagnose
you could misdiagnose
they could misdiagnose 	I could be misdiagnosing
you could be misdiagnosing
he could be misdiagnosing
we could be misdiagnosing
you could be misdiagnosing
they could be misdiagnosing	I could have misdiagnosed
you could have misdiagnosed
he could have misdiagnosed
we could have misdiagnosed
you could have misdiagnosed
they could have misdiagnosed	I could have been misdiagnosing
you could have been misdiagnosing
he could have been misdiagnosing
we could have been misdiagnosing
you could have been misdiagnosing
they could have been misdiagnosing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't misdiagnose
you couldn't misdiagnose
he couldn't misdiagnose
we couldn't misdiagnose
you couldn't misdiagnose
they couldn't misdiagnose 	I couldn't be misdiagnosing
you couldn't be misdiagnosing
he couldn't be misdiagnosing
we couldn't be misdiagnosing
you couldn't be misdiagnosing
they couldn't be misdiagnosing	I couldn't have misdiagnosed
you couldn't have misdiagnosed
he couldn't have misdiagnosed
we couldn't have misdiagnosed
you couldn't have misdiagnosed
they couldn't have misdiagnosed	I couldn't have been misdiagnosing
you couldn't have been misdiagnosing
he couldn't have been misdiagnosing
we couldn't have been misdiagnosing
you couldn't have been misdiagnosing
they couldn't have been misdiagnosing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I misdiagnose?
could you misdiagnose?
could he misdiagnose?
could we misdiagnose?
could you misdiagnose?
could they misdiagnose? 	could I be misdiagnosing?
could you be misdiagnosing?
could he be misdiagnosing?
could we be misdiagnosing?
could you be misdiagnosing?
could they be misdiagnosing? 	could I have misdiagnosed?
could you have misdiagnosed?
could he have misdiagnosed?
could we have misdiagnosed?
could you have misdiagnosed?
could they have misdiagnosed? 	could I have been misdiagnosing?
could you have been misdiagnosing?
could he have been misdiagnosing?
could we have been misdiagnosing?
could you have been misdiagnosing?
could they have been misdiagnosing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I misdiagnose?
couldn't you misdiagnose?
couldn't he misdiagnose?
couldn't we misdiagnose?
couldn't you misdiagnose?
couldn't they misdiagnose? 	couldn't I be misdiagnosing?
couldn't you be misdiagnosing?
couldn't he be misdiagnosing?
couldn't we be misdiagnosing?
couldn't you be misdiagnosing?
couldn't they be misdiagnosing? 	couldn't I have misdiagnosed?
couldn't you have misdiagnosed?
couldn't he have misdiagnosed?
couldn't we have misdiagnosed?
couldn't you have misdiagnosed?
couldn't they have misdiagnosed? 	couldn't I have been misdiagnosing?
couldn't you have been misdiagnosing?
couldn't he have been misdiagnosing?
couldn't we have been misdiagnosing?
couldn't you have been misdiagnosing?
couldn't they have been misdiagnosing?