I can acetify you can acetify he can acetify we can acetify you can acetify they can acetify
V-ing form
I can be acetifying you can be acetifying he can be acetifying we can be acetifying you can be acetifying they can be acetifying
Perfect
I can have acetified you can have acetified he can have acetified we can have acetified you can have acetified they can have acetified
V-ing perfect
I can have been acetifying you can have been acetifying he can have been acetifying we can have been acetifying you can have been acetifying they can have been acetifying
Negation
Simple form
I cannot acetify you cannot acetify he cannot acetify we cannot acetify you cannot acetify they cannot acetify
V-ing form
I cannot be acetifying you cannot be acetifying he cannot be acetifying we cannot be acetifying you cannot be acetifying they cannot be acetifying
Perfect
I cannot have acetified you cannot have acetified he cannot have acetified we cannot have acetified you cannot have acetified they cannot have acetified
V-ing perfect
I cannot have been acetifying you cannot have been acetifying he cannot have been acetifying we cannot have been acetifying you cannot have been acetifying they cannot have been acetifying
Interrogative form
Simple form
can I acetify? can you acetify? can he acetify? can we acetify? can you acetify? can they acetify?
V-ing form
can I be acetifying? can you be acetifying? can he be acetifying? can we be acetifying? can you be acetifying? can they be acetifying?
Perfect
can I have acetified? can you have acetified? can he have acetified? can we have acetified? can you have acetified? can they have acetified?
V-ing perfect
can I have been acetifying? can you have been acetifying? can he have been acetifying? can we have been acetifying? can you have been acetifying? can they have been acetifying?
Interro-negative form
Simple form
can I not acetify? can you not acetify? can he not acetify? can we not acetify? can you not acetify? can they not acetify?
V-ing form
can I not be acetifying? can you not be acetifying? can he not be acetifying? can we not be acetifying? can you not be acetifying? can they not be acetifying?
Perfect
can I not have acetified? can you not have acetified? can he not have acetified? can we not have acetified? can you not have acetified? can they not have acetified?
V-ing perfect
can I not have been acetifying? can you not have been acetifying? can he not have been acetifying? can we not have been acetifying? can you not have been acetifying? can they not have been acetifying?