I can intensify you can intensify he can intensify we can intensify you can intensify they can intensify
V-ing form
I can be intensifying you can be intensifying he can be intensifying we can be intensifying you can be intensifying they can be intensifying
Perfect
I can have intensified you can have intensified he can have intensified we can have intensified you can have intensified they can have intensified
V-ing perfect
I can have been intensifying you can have been intensifying he can have been intensifying we can have been intensifying you can have been intensifying they can have been intensifying
Negation
Simple form
I can't intensify you can't intensify he can't intensify we can't intensify you can't intensify they can't intensify
V-ing form
I can't be intensifying you can't be intensifying he can't be intensifying we can't be intensifying you can't be intensifying they can't be intensifying
Perfect
I can't have intensified you can't have intensified he can't have intensified we can't have intensified you can't have intensified they can't have intensified
V-ing perfect
I can't have been intensifying you can't have been intensifying he can't have been intensifying we can't have been intensifying you can't have been intensifying they can't have been intensifying
Interrogative form
Simple form
can I intensify? can you intensify? can he intensify? can we intensify? can you intensify? can they intensify?
V-ing form
can I be intensifying? can you be intensifying? can he be intensifying? can we be intensifying? can you be intensifying? can they be intensifying?
Perfect
can I have intensified? can you have intensified? can he have intensified? can we have intensified? can you have intensified? can they have intensified?
V-ing perfect
can I have been intensifying? can you have been intensifying? can he have been intensifying? can we have been intensifying? can you have been intensifying? can they have been intensifying?
Interro-negative form
Simple form
can't I intensify? can't you intensify? can't he intensify? can't we intensify? can't you intensify? can't they intensify?
V-ing form
can't I be intensifying? can't you be intensifying? can't he be intensifying? can't we be intensifying? can't you be intensifying? can't they be intensifying?
Perfect
can't I have intensified? can't you have intensified? can't he have intensified? can't we have intensified? can't you have intensified? can't they have intensified?
V-ing perfect
can't I have been intensifying? can't you have been intensifying? can't he have been intensifying? can't we have been intensifying? can't you have been intensifying? can't they have been intensifying?