English verb conjugation
CAN COLOUR

Regular verb: colour - coloured - coloured

Affirmation

Simple form	V-ing form
I can colour you can colour he can colour we can colour you can colour they can colour	I can be colouring you can be colouring he can be colouring we can be colouring you can be colouring they can be colouring
Perfect	V-ing perfect
I can have coloured you can have coloured he can have coloured we can have coloured you can have coloured they can have coloured	I can have been colouring you can have been colouring he can have been colouring we can have been colouring you can have been colouring they can have been colouring

Negation

Simple form	V-ing form
I can't colour you can't colour he can't colour we can't colour you can't colour they can't colour	I can't be colouring you can't be colouring he can't be colouring we can't be colouring you can't be colouring they can't be colouring
Perfect	V-ing perfect
I can't have coloured you can't have coloured he can't have coloured we can't have coloured you can't have coloured they can't have coloured	I can't have been colouring you can't have been colouring he can't have been colouring we can't have been colouring you can't have been colouring they can't have been colouring

Interrogative form

Simple form	V-ing form
can I colour? can you colour? can he colour? can we colour? can you colour? can they colour?	can I be colouring? can you be colouring? can he be colouring? can we be colouring? can you be colouring? can they be colouring?
Perfect	V-ing perfect
can I have coloured? can you have coloured? can he have coloured? can we have coloured? can you have coloured? can they have coloured?	can I have been colouring? can you have been colouring? can he have been colouring? can we have been colouring? can you have been colouring? can they have been colouring?

Interro-negative form

Simple form	V-ing form
can't I colour? can't you colour? can't he colour? can't we colour? can't you colour? can't they colour?	can't I be colouring? can't you be colouring? can't he be colouring? can't we be colouring? can't you be colouring? can't they be colouring?
Perfect	V-ing perfect
can't I have coloured? can't you have coloured? can't he have coloured? can't we have coloured? can't you have coloured? can't they have coloured?	can't I have been colouring? can't you have been colouring? can't he have been colouring? can't we have been colouring? can't you have been colouring? can't they have been colouring?