could helenise
Regular verb: helenise - helenised- helenised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could helenise
you could helenise
he could helenise
we could helenise
you could helenise
they could helenise 	I could be helenising
you could be helenising
he could be helenising
we could be helenising
you could be helenising
they could be helenising	I could have helenised
you could have helenised
he could have helenised
we could have helenised
you could have helenised
they could have helenised	I could have been helenising
you could have been helenising
he could have been helenising
we could have been helenising
you could have been helenising
they could have been helenising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't helenise
you couldn't helenise
he couldn't helenise
we couldn't helenise
you couldn't helenise
they couldn't helenise 	I couldn't be helenising
you couldn't be helenising
he couldn't be helenising
we couldn't be helenising
you couldn't be helenising
they couldn't be helenising	I couldn't have helenised
you couldn't have helenised
he couldn't have helenised
we couldn't have helenised
you couldn't have helenised
they couldn't have helenised	I couldn't have been helenising
you couldn't have been helenising
he couldn't have been helenising
we couldn't have been helenising
you couldn't have been helenising
they couldn't have been helenising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I helenise?
could you helenise?
could he helenise?
could we helenise?
could you helenise?
could they helenise? 	could I be helenising?
could you be helenising?
could he be helenising?
could we be helenising?
could you be helenising?
could they be helenising? 	could I have helenised?
could you have helenised?
could he have helenised?
could we have helenised?
could you have helenised?
could they have helenised? 	could I have been helenising?
could you have been helenising?
could he have been helenising?
could we have been helenising?
could you have been helenising?
could they have been helenising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I helenise?
couldn't you helenise?
couldn't he helenise?
couldn't we helenise?
couldn't you helenise?
couldn't they helenise? 	couldn't I be helenising?
couldn't you be helenising?
couldn't he be helenising?
couldn't we be helenising?
couldn't you be helenising?
couldn't they be helenising? 	couldn't I have helenised?
couldn't you have helenised?
couldn't he have helenised?
couldn't we have helenised?
couldn't you have helenised?
couldn't they have helenised? 	couldn't I have been helenising?
couldn't you have been helenising?
couldn't he have been helenising?
couldn't we have been helenising?
couldn't you have been helenising?
couldn't they have been helenising?