I can materialise you can materialise he can materialise we can materialise you can materialise they can materialise
V-ing form
I can be materialising you can be materialising he can be materialising we can be materialising you can be materialising they can be materialising
Perfect
I can have materialised you can have materialised he can have materialised we can have materialised you can have materialised they can have materialised
V-ing perfect
I can have been materialising you can have been materialising he can have been materialising we can have been materialising you can have been materialising they can have been materialising
Negation
Simple form
I can't materialise you can't materialise he can't materialise we can't materialise you can't materialise they can't materialise
V-ing form
I can't be materialising you can't be materialising he can't be materialising we can't be materialising you can't be materialising they can't be materialising
Perfect
I can't have materialised you can't have materialised he can't have materialised we can't have materialised you can't have materialised they can't have materialised
V-ing perfect
I can't have been materialising you can't have been materialising he can't have been materialising we can't have been materialising you can't have been materialising they can't have been materialising
Interrogative form
Simple form
can I materialise? can you materialise? can he materialise? can we materialise? can you materialise? can they materialise?
V-ing form
can I be materialising? can you be materialising? can he be materialising? can we be materialising? can you be materialising? can they be materialising?
Perfect
can I have materialised? can you have materialised? can he have materialised? can we have materialised? can you have materialised? can they have materialised?
V-ing perfect
can I have been materialising? can you have been materialising? can he have been materialising? can we have been materialising? can you have been materialising? can they have been materialising?
Interro-negative form
Simple form
can't I materialise? can't you materialise? can't he materialise? can't we materialise? can't you materialise? can't they materialise?
V-ing form
can't I be materialising? can't you be materialising? can't he be materialising? can't we be materialising? can't you be materialising? can't they be materialising?
Perfect
can't I have materialised? can't you have materialised? can't he have materialised? can't we have materialised? can't you have materialised? can't they have materialised?
V-ing perfect
can't I have been materialising? can't you have been materialising? can't he have been materialising? can't we have been materialising? can't you have been materialising? can't they have been materialising?