could penalise
Regular verb: penalise - penalised- penalised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could penalise
you could penalise
he could penalise
we could penalise
you could penalise
they could penalise 	I could be penalising
you could be penalising
he could be penalising
we could be penalising
you could be penalising
they could be penalising	I could have penalised
you could have penalised
he could have penalised
we could have penalised
you could have penalised
they could have penalised	I could have been penalising
you could have been penalising
he could have been penalising
we could have been penalising
you could have been penalising
they could have been penalising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't penalise
you couldn't penalise
he couldn't penalise
we couldn't penalise
you couldn't penalise
they couldn't penalise 	I couldn't be penalising
you couldn't be penalising
he couldn't be penalising
we couldn't be penalising
you couldn't be penalising
they couldn't be penalising	I couldn't have penalised
you couldn't have penalised
he couldn't have penalised
we couldn't have penalised
you couldn't have penalised
they couldn't have penalised	I couldn't have been penalising
you couldn't have been penalising
he couldn't have been penalising
we couldn't have been penalising
you couldn't have been penalising
they couldn't have been penalising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I penalise?
could you penalise?
could he penalise?
could we penalise?
could you penalise?
could they penalise? 	could I be penalising?
could you be penalising?
could he be penalising?
could we be penalising?
could you be penalising?
could they be penalising? 	could I have penalised?
could you have penalised?
could he have penalised?
could we have penalised?
could you have penalised?
could they have penalised? 	could I have been penalising?
could you have been penalising?
could he have been penalising?
could we have been penalising?
could you have been penalising?
could they have been penalising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I penalise?
couldn't you penalise?
couldn't he penalise?
couldn't we penalise?
couldn't you penalise?
couldn't they penalise? 	couldn't I be penalising?
couldn't you be penalising?
couldn't he be penalising?
couldn't we be penalising?
couldn't you be penalising?
couldn't they be penalising? 	couldn't I have penalised?
couldn't you have penalised?
couldn't he have penalised?
couldn't we have penalised?
couldn't you have penalised?
couldn't they have penalised? 	couldn't I have been penalising?
couldn't you have been penalising?
couldn't he have been penalising?
couldn't we have been penalising?
couldn't you have been penalising?
couldn't they have been penalising?