could necrotise
Regular verb: necrotise - necrotised- necrotised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could necrotise
you could necrotise
he could necrotise
we could necrotise
you could necrotise
they could necrotise 	I could be necrotising
you could be necrotising
he could be necrotising
we could be necrotising
you could be necrotising
they could be necrotising	I could have necrotised
you could have necrotised
he could have necrotised
we could have necrotised
you could have necrotised
they could have necrotised	I could have been necrotising
you could have been necrotising
he could have been necrotising
we could have been necrotising
you could have been necrotising
they could have been necrotising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't necrotise
you couldn't necrotise
he couldn't necrotise
we couldn't necrotise
you couldn't necrotise
they couldn't necrotise 	I couldn't be necrotising
you couldn't be necrotising
he couldn't be necrotising
we couldn't be necrotising
you couldn't be necrotising
they couldn't be necrotising	I couldn't have necrotised
you couldn't have necrotised
he couldn't have necrotised
we couldn't have necrotised
you couldn't have necrotised
they couldn't have necrotised	I couldn't have been necrotising
you couldn't have been necrotising
he couldn't have been necrotising
we couldn't have been necrotising
you couldn't have been necrotising
they couldn't have been necrotising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I necrotise?
could you necrotise?
could he necrotise?
could we necrotise?
could you necrotise?
could they necrotise? 	could I be necrotising?
could you be necrotising?
could he be necrotising?
could we be necrotising?
could you be necrotising?
could they be necrotising? 	could I have necrotised?
could you have necrotised?
could he have necrotised?
could we have necrotised?
could you have necrotised?
could they have necrotised? 	could I have been necrotising?
could you have been necrotising?
could he have been necrotising?
could we have been necrotising?
could you have been necrotising?
could they have been necrotising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I necrotise?
couldn't you necrotise?
couldn't he necrotise?
couldn't we necrotise?
couldn't you necrotise?
couldn't they necrotise? 	couldn't I be necrotising?
couldn't you be necrotising?
couldn't he be necrotising?
couldn't we be necrotising?
couldn't you be necrotising?
couldn't they be necrotising? 	couldn't I have necrotised?
couldn't you have necrotised?
couldn't he have necrotised?
couldn't we have necrotised?
couldn't you have necrotised?
couldn't they have necrotised? 	couldn't I have been necrotising?
couldn't you have been necrotising?
couldn't he have been necrotising?
couldn't we have been necrotising?
couldn't you have been necrotising?
couldn't they have been necrotising?