I can formulise you can formulise he can formulise we can formulise you can formulise they can formulise
V-ing form
I can be formulising you can be formulising he can be formulising we can be formulising you can be formulising they can be formulising
Perfect
I can have formulised you can have formulised he can have formulised we can have formulised you can have formulised they can have formulised
V-ing perfect
I can have been formulising you can have been formulising he can have been formulising we can have been formulising you can have been formulising they can have been formulising
Negation
Simple form
I can't formulise you can't formulise he can't formulise we can't formulise you can't formulise they can't formulise
V-ing form
I can't be formulising you can't be formulising he can't be formulising we can't be formulising you can't be formulising they can't be formulising
Perfect
I can't have formulised you can't have formulised he can't have formulised we can't have formulised you can't have formulised they can't have formulised
V-ing perfect
I can't have been formulising you can't have been formulising he can't have been formulising we can't have been formulising you can't have been formulising they can't have been formulising
Interrogative form
Simple form
can I formulise? can you formulise? can he formulise? can we formulise? can you formulise? can they formulise?
V-ing form
can I be formulising? can you be formulising? can he be formulising? can we be formulising? can you be formulising? can they be formulising?
Perfect
can I have formulised? can you have formulised? can he have formulised? can we have formulised? can you have formulised? can they have formulised?
V-ing perfect
can I have been formulising? can you have been formulising? can he have been formulising? can we have been formulising? can you have been formulising? can they have been formulising?
Interro-negative form
Simple form
can't I formulise? can't you formulise? can't he formulise? can't we formulise? can't you formulise? can't they formulise?
V-ing form
can't I be formulising? can't you be formulising? can't he be formulising? can't we be formulising? can't you be formulising? can't they be formulising?
Perfect
can't I have formulised? can't you have formulised? can't he have formulised? can't we have formulised? can't you have formulised? can't they have formulised?
V-ing perfect
can't I have been formulising? can't you have been formulising? can't he have been formulising? can't we have been formulising? can't you have been formulising? can't they have been formulising?