could digitalise
Regular verb: digitalise - digitalised- digitalised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could digitalise
you could digitalise
he could digitalise
we could digitalise
you could digitalise
they could digitalise 	I could be digitalising
you could be digitalising
he could be digitalising
we could be digitalising
you could be digitalising
they could be digitalising	I could have digitalised
you could have digitalised
he could have digitalised
we could have digitalised
you could have digitalised
they could have digitalised	I could have been digitalising
you could have been digitalising
he could have been digitalising
we could have been digitalising
you could have been digitalising
they could have been digitalising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't digitalise
you couldn't digitalise
he couldn't digitalise
we couldn't digitalise
you couldn't digitalise
they couldn't digitalise 	I couldn't be digitalising
you couldn't be digitalising
he couldn't be digitalising
we couldn't be digitalising
you couldn't be digitalising
they couldn't be digitalising	I couldn't have digitalised
you couldn't have digitalised
he couldn't have digitalised
we couldn't have digitalised
you couldn't have digitalised
they couldn't have digitalised	I couldn't have been digitalising
you couldn't have been digitalising
he couldn't have been digitalising
we couldn't have been digitalising
you couldn't have been digitalising
they couldn't have been digitalising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I digitalise?
could you digitalise?
could he digitalise?
could we digitalise?
could you digitalise?
could they digitalise? 	could I be digitalising?
could you be digitalising?
could he be digitalising?
could we be digitalising?
could you be digitalising?
could they be digitalising? 	could I have digitalised?
could you have digitalised?
could he have digitalised?
could we have digitalised?
could you have digitalised?
could they have digitalised? 	could I have been digitalising?
could you have been digitalising?
could he have been digitalising?
could we have been digitalising?
could you have been digitalising?
could they have been digitalising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I digitalise?
couldn't you digitalise?
couldn't he digitalise?
couldn't we digitalise?
couldn't you digitalise?
couldn't they digitalise? 	couldn't I be digitalising?
couldn't you be digitalising?
couldn't he be digitalising?
couldn't we be digitalising?
couldn't you be digitalising?
couldn't they be digitalising? 	couldn't I have digitalised?
couldn't you have digitalised?
couldn't he have digitalised?
couldn't we have digitalised?
couldn't you have digitalised?
couldn't they have digitalised? 	couldn't I have been digitalising?
couldn't you have been digitalising?
couldn't he have been digitalising?
couldn't we have been digitalising?
couldn't you have been digitalising?
couldn't they have been digitalising?