English verb conjugation
CAN AUTHORISE

Regular verb: authorise - authorised - authorised

Affirmation

Simple form	V-ing form
I can authorise you can authorise he can authorise we can authorise you can authorise they can authorise	I can be authorising you can be authorising he can be authorising we can be authorising you can be authorising they can be authorising
Perfect	V-ing perfect
I can have authorised you can have authorised he can have authorised we can have authorised you can have authorised they can have authorised	I can have been authorising you can have been authorising he can have been authorising we can have been authorising you can have been authorising they can have been authorising

Negation

Simple form	V-ing form
I can't authorise you can't authorise he can't authorise we can't authorise you can't authorise they can't authorise	I can't be authorising you can't be authorising he can't be authorising we can't be authorising you can't be authorising they can't be authorising
Perfect	V-ing perfect
I can't have authorised you can't have authorised he can't have authorised we can't have authorised you can't have authorised they can't have authorised	I can't have been authorising you can't have been authorising he can't have been authorising we can't have been authorising you can't have been authorising they can't have been authorising

Interrogative form

Simple form	V-ing form
can I authorise? can you authorise? can he authorise? can we authorise? can you authorise? can they authorise?	can I be authorising? can you be authorising? can he be authorising? can we be authorising? can you be authorising? can they be authorising?
Perfect	V-ing perfect
can I have authorised? can you have authorised? can he have authorised? can we have authorised? can you have authorised? can they have authorised?	can I have been authorising? can you have been authorising? can he have been authorising? can we have been authorising? can you have been authorising? can they have been authorising?

Interro-negative form

Simple form	V-ing form
can't I authorise? can't you authorise? can't he authorise? can't we authorise? can't you authorise? can't they authorise?	can't I be authorising? can't you be authorising? can't he be authorising? can't we be authorising? can't you be authorising? can't they be authorising?
Perfect	V-ing perfect
can't I have authorised? can't you have authorised? can't he have authorised? can't we have authorised? can't you have authorised? can't they have authorised?	can't I have been authorising? can't you have been authorising? can't he have been authorising? can't we have been authorising? can't you have been authorising? can't they have been authorising?