I can formalise you can formalise he can formalise we can formalise you can formalise they can formalise
V-ing form
I can be formalising you can be formalising he can be formalising we can be formalising you can be formalising they can be formalising
Perfect
I can have formalised you can have formalised he can have formalised we can have formalised you can have formalised they can have formalised
V-ing perfect
I can have been formalising you can have been formalising he can have been formalising we can have been formalising you can have been formalising they can have been formalising
Negation
Simple form
I can't formalise you can't formalise he can't formalise we can't formalise you can't formalise they can't formalise
V-ing form
I can't be formalising you can't be formalising he can't be formalising we can't be formalising you can't be formalising they can't be formalising
Perfect
I can't have formalised you can't have formalised he can't have formalised we can't have formalised you can't have formalised they can't have formalised
V-ing perfect
I can't have been formalising you can't have been formalising he can't have been formalising we can't have been formalising you can't have been formalising they can't have been formalising
Interrogative form
Simple form
can I formalise? can you formalise? can he formalise? can we formalise? can you formalise? can they formalise?
V-ing form
can I be formalising? can you be formalising? can he be formalising? can we be formalising? can you be formalising? can they be formalising?
Perfect
can I have formalised? can you have formalised? can he have formalised? can we have formalised? can you have formalised? can they have formalised?
V-ing perfect
can I have been formalising? can you have been formalising? can he have been formalising? can we have been formalising? can you have been formalising? can they have been formalising?
Interro-negative form
Simple form
can't I formalise? can't you formalise? can't he formalise? can't we formalise? can't you formalise? can't they formalise?
V-ing form
can't I be formalising? can't you be formalising? can't he be formalising? can't we be formalising? can't you be formalising? can't they be formalising?
Perfect
can't I have formalised? can't you have formalised? can't he have formalised? can't we have formalised? can't you have formalised? can't they have formalised?
V-ing perfect
can't I have been formalising? can't you have been formalising? can't he have been formalising? can't we have been formalising? can't you have been formalising? can't they have been formalising?