I can rectify you can rectify he can rectify we can rectify you can rectify they can rectify
V-ing form
I can be rectifying you can be rectifying he can be rectifying we can be rectifying you can be rectifying they can be rectifying
Perfect
I can have rectified you can have rectified he can have rectified we can have rectified you can have rectified they can have rectified
V-ing perfect
I can have been rectifying you can have been rectifying he can have been rectifying we can have been rectifying you can have been rectifying they can have been rectifying
Negation
Simple form
I can't rectify you can't rectify he can't rectify we can't rectify you can't rectify they can't rectify
V-ing form
I can't be rectifying you can't be rectifying he can't be rectifying we can't be rectifying you can't be rectifying they can't be rectifying
Perfect
I can't have rectified you can't have rectified he can't have rectified we can't have rectified you can't have rectified they can't have rectified
V-ing perfect
I can't have been rectifying you can't have been rectifying he can't have been rectifying we can't have been rectifying you can't have been rectifying they can't have been rectifying
Interrogative form
Simple form
can I rectify? can you rectify? can he rectify? can we rectify? can you rectify? can they rectify?
V-ing form
can I be rectifying? can you be rectifying? can he be rectifying? can we be rectifying? can you be rectifying? can they be rectifying?
Perfect
can I have rectified? can you have rectified? can he have rectified? can we have rectified? can you have rectified? can they have rectified?
V-ing perfect
can I have been rectifying? can you have been rectifying? can he have been rectifying? can we have been rectifying? can you have been rectifying? can they have been rectifying?
Interro-negative form
Simple form
can't I rectify? can't you rectify? can't he rectify? can't we rectify? can't you rectify? can't they rectify?
V-ing form
can't I be rectifying? can't you be rectifying? can't he be rectifying? can't we be rectifying? can't you be rectifying? can't they be rectifying?
Perfect
can't I have rectified? can't you have rectified? can't he have rectified? can't we have rectified? can't you have rectified? can't they have rectified?
V-ing perfect
can't I have been rectifying? can't you have been rectifying? can't he have been rectifying? can't we have been rectifying? can't you have been rectifying? can't they have been rectifying?