could lysogenise
Regular verb: lysogenise - lysogenised- lysogenised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could lysogenise
you could lysogenise
he could lysogenise
we could lysogenise
you could lysogenise
they could lysogenise 	I could be lysogenising
you could be lysogenising
he could be lysogenising
we could be lysogenising
you could be lysogenising
they could be lysogenising	I could have lysogenised
you could have lysogenised
he could have lysogenised
we could have lysogenised
you could have lysogenised
they could have lysogenised	I could have been lysogenising
you could have been lysogenising
he could have been lysogenising
we could have been lysogenising
you could have been lysogenising
they could have been lysogenising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't lysogenise
you couldn't lysogenise
he couldn't lysogenise
we couldn't lysogenise
you couldn't lysogenise
they couldn't lysogenise 	I couldn't be lysogenising
you couldn't be lysogenising
he couldn't be lysogenising
we couldn't be lysogenising
you couldn't be lysogenising
they couldn't be lysogenising	I couldn't have lysogenised
you couldn't have lysogenised
he couldn't have lysogenised
we couldn't have lysogenised
you couldn't have lysogenised
they couldn't have lysogenised	I couldn't have been lysogenising
you couldn't have been lysogenising
he couldn't have been lysogenising
we couldn't have been lysogenising
you couldn't have been lysogenising
they couldn't have been lysogenising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I lysogenise?
could you lysogenise?
could he lysogenise?
could we lysogenise?
could you lysogenise?
could they lysogenise? 	could I be lysogenising?
could you be lysogenising?
could he be lysogenising?
could we be lysogenising?
could you be lysogenising?
could they be lysogenising? 	could I have lysogenised?
could you have lysogenised?
could he have lysogenised?
could we have lysogenised?
could you have lysogenised?
could they have lysogenised? 	could I have been lysogenising?
could you have been lysogenising?
could he have been lysogenising?
could we have been lysogenising?
could you have been lysogenising?
could they have been lysogenising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I lysogenise?
couldn't you lysogenise?
couldn't he lysogenise?
couldn't we lysogenise?
couldn't you lysogenise?
couldn't they lysogenise? 	couldn't I be lysogenising?
couldn't you be lysogenising?
couldn't he be lysogenising?
couldn't we be lysogenising?
couldn't you be lysogenising?
couldn't they be lysogenising? 	couldn't I have lysogenised?
couldn't you have lysogenised?
couldn't he have lysogenised?
couldn't we have lysogenised?
couldn't you have lysogenised?
couldn't they have lysogenised? 	couldn't I have been lysogenising?
couldn't you have been lysogenising?
couldn't he have been lysogenising?
couldn't we have been lysogenising?
couldn't you have been lysogenising?
couldn't they have been lysogenising?