I can materialize you can materialize he can materialize we can materialize you can materialize they can materialize
V-ing form
I can be materializing you can be materializing he can be materializing we can be materializing you can be materializing they can be materializing
Perfect
I can have materialized you can have materialized he can have materialized we can have materialized you can have materialized they can have materialized
V-ing perfect
I can have been materializing you can have been materializing he can have been materializing we can have been materializing you can have been materializing they can have been materializing
Negation
Simple form
I can't materialize you can't materialize he can't materialize we can't materialize you can't materialize they can't materialize
V-ing form
I can't be materializing you can't be materializing he can't be materializing we can't be materializing you can't be materializing they can't be materializing
Perfect
I can't have materialized you can't have materialized he can't have materialized we can't have materialized you can't have materialized they can't have materialized
V-ing perfect
I can't have been materializing you can't have been materializing he can't have been materializing we can't have been materializing you can't have been materializing they can't have been materializing
Interrogative form
Simple form
can I materialize? can you materialize? can he materialize? can we materialize? can you materialize? can they materialize?
V-ing form
can I be materializing? can you be materializing? can he be materializing? can we be materializing? can you be materializing? can they be materializing?
Perfect
can I have materialized? can you have materialized? can he have materialized? can we have materialized? can you have materialized? can they have materialized?
V-ing perfect
can I have been materializing? can you have been materializing? can he have been materializing? can we have been materializing? can you have been materializing? can they have been materializing?
Interro-negative form
Simple form
can't I materialize? can't you materialize? can't he materialize? can't we materialize? can't you materialize? can't they materialize?
V-ing form
can't I be materializing? can't you be materializing? can't he be materializing? can't we be materializing? can't you be materializing? can't they be materializing?
Perfect
can't I have materialized? can't you have materialized? can't he have materialized? can't we have materialized? can't you have materialized? can't they have materialized?
V-ing perfect
can't I have been materializing? can't you have been materializing? can't he have been materializing? can't we have been materializing? can't you have been materializing? can't they have been materializing?