I can harmonise you can harmonise he can harmonise we can harmonise you can harmonise they can harmonise
V-ing form
I can be harmonising you can be harmonising he can be harmonising we can be harmonising you can be harmonising they can be harmonising
Perfect
I can have harmonised you can have harmonised he can have harmonised we can have harmonised you can have harmonised they can have harmonised
V-ing perfect
I can have been harmonising you can have been harmonising he can have been harmonising we can have been harmonising you can have been harmonising they can have been harmonising
Negation
Simple form
I can't harmonise you can't harmonise he can't harmonise we can't harmonise you can't harmonise they can't harmonise
V-ing form
I can't be harmonising you can't be harmonising he can't be harmonising we can't be harmonising you can't be harmonising they can't be harmonising
Perfect
I can't have harmonised you can't have harmonised he can't have harmonised we can't have harmonised you can't have harmonised they can't have harmonised
V-ing perfect
I can't have been harmonising you can't have been harmonising he can't have been harmonising we can't have been harmonising you can't have been harmonising they can't have been harmonising
Interrogative form
Simple form
can I harmonise? can you harmonise? can he harmonise? can we harmonise? can you harmonise? can they harmonise?
V-ing form
can I be harmonising? can you be harmonising? can he be harmonising? can we be harmonising? can you be harmonising? can they be harmonising?
Perfect
can I have harmonised? can you have harmonised? can he have harmonised? can we have harmonised? can you have harmonised? can they have harmonised?
V-ing perfect
can I have been harmonising? can you have been harmonising? can he have been harmonising? can we have been harmonising? can you have been harmonising? can they have been harmonising?
Interro-negative form
Simple form
can't I harmonise? can't you harmonise? can't he harmonise? can't we harmonise? can't you harmonise? can't they harmonise?
V-ing form
can't I be harmonising? can't you be harmonising? can't he be harmonising? can't we be harmonising? can't you be harmonising? can't they be harmonising?
Perfect
can't I have harmonised? can't you have harmonised? can't he have harmonised? can't we have harmonised? can't you have harmonised? can't they have harmonised?
V-ing perfect
can't I have been harmonising? can't you have been harmonising? can't he have been harmonising? can't we have been harmonising? can't you have been harmonising? can't they have been harmonising?