English verb conjugation
CAN CATEGORISE

Regular verb: categorise - categorised - categorised

Affirmation

Simple form	V-ing form
I can categorise you can categorise he can categorise we can categorise you can categorise they can categorise	I can be categorising you can be categorising he can be categorising we can be categorising you can be categorising they can be categorising
Perfect	V-ing perfect
I can have categorised you can have categorised he can have categorised we can have categorised you can have categorised they can have categorised	I can have been categorising you can have been categorising he can have been categorising we can have been categorising you can have been categorising they can have been categorising

Negation

Simple form	V-ing form
I cannot categorise you cannot categorise he cannot categorise we cannot categorise you cannot categorise they cannot categorise	I cannot be categorising you cannot be categorising he cannot be categorising we cannot be categorising you cannot be categorising they cannot be categorising
Perfect	V-ing perfect
I cannot have categorised you cannot have categorised he cannot have categorised we cannot have categorised you cannot have categorised they cannot have categorised	I cannot have been categorising you cannot have been categorising he cannot have been categorising we cannot have been categorising you cannot have been categorising they cannot have been categorising

Interrogative form

Simple form	V-ing form
can I categorise? can you categorise? can he categorise? can we categorise? can you categorise? can they categorise?	can I be categorising? can you be categorising? can he be categorising? can we be categorising? can you be categorising? can they be categorising?
Perfect	V-ing perfect
can I have categorised? can you have categorised? can he have categorised? can we have categorised? can you have categorised? can they have categorised?	can I have been categorising? can you have been categorising? can he have been categorising? can we have been categorising? can you have been categorising? can they have been categorising?

Interro-negative form

Simple form	V-ing form
can I not categorise? can you not categorise? can he not categorise? can we not categorise? can you not categorise? can they not categorise?	can I not be categorising? can you not be categorising? can he not be categorising? can we not be categorising? can you not be categorising? can they not be categorising?
Perfect	V-ing perfect
can I not have categorised? can you not have categorised? can he not have categorised? can we not have categorised? can you not have categorised? can they not have categorised?	can I not have been categorising? can you not have been categorising? can he not have been categorising? can we not have been categorising? can you not have been categorising? can they not have been categorising?