could criticise
Regular verb: criticise - criticised- criticised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could criticise
you could criticise
he could criticise
we could criticise
you could criticise
they could criticise 	I could be criticising
you could be criticising
he could be criticising
we could be criticising
you could be criticising
they could be criticising	I could have criticised
you could have criticised
he could have criticised
we could have criticised
you could have criticised
they could have criticised	I could have been criticising
you could have been criticising
he could have been criticising
we could have been criticising
you could have been criticising
they could have been criticising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't criticise
you couldn't criticise
he couldn't criticise
we couldn't criticise
you couldn't criticise
they couldn't criticise 	I couldn't be criticising
you couldn't be criticising
he couldn't be criticising
we couldn't be criticising
you couldn't be criticising
they couldn't be criticising	I couldn't have criticised
you couldn't have criticised
he couldn't have criticised
we couldn't have criticised
you couldn't have criticised
they couldn't have criticised	I couldn't have been criticising
you couldn't have been criticising
he couldn't have been criticising
we couldn't have been criticising
you couldn't have been criticising
they couldn't have been criticising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I criticise?
could you criticise?
could he criticise?
could we criticise?
could you criticise?
could they criticise? 	could I be criticising?
could you be criticising?
could he be criticising?
could we be criticising?
could you be criticising?
could they be criticising? 	could I have criticised?
could you have criticised?
could he have criticised?
could we have criticised?
could you have criticised?
could they have criticised? 	could I have been criticising?
could you have been criticising?
could he have been criticising?
could we have been criticising?
could you have been criticising?
could they have been criticising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I criticise?
couldn't you criticise?
couldn't he criticise?
couldn't we criticise?
couldn't you criticise?
couldn't they criticise? 	couldn't I be criticising?
couldn't you be criticising?
couldn't he be criticising?
couldn't we be criticising?
couldn't you be criticising?
couldn't they be criticising? 	couldn't I have criticised?
couldn't you have criticised?
couldn't he have criticised?
couldn't we have criticised?
couldn't you have criticised?
couldn't they have criticised? 	couldn't I have been criticising?
couldn't you have been criticising?
couldn't he have been criticising?
couldn't we have been criticising?
couldn't you have been criticising?
couldn't they have been criticising?