I can adduce you can adduce he can adduce we can adduce you can adduce they can adduce
V-ing form
I can be adducing you can be adducing he can be adducing we can be adducing you can be adducing they can be adducing
Perfect
I can have adduced you can have adduced he can have adduced we can have adduced you can have adduced they can have adduced
V-ing perfect
I can have been adducing you can have been adducing he can have been adducing we can have been adducing you can have been adducing they can have been adducing
Negation
Simple form
I can't adduce you can't adduce he can't adduce we can't adduce you can't adduce they can't adduce
V-ing form
I can't be adducing you can't be adducing he can't be adducing we can't be adducing you can't be adducing they can't be adducing
Perfect
I can't have adduced you can't have adduced he can't have adduced we can't have adduced you can't have adduced they can't have adduced
V-ing perfect
I can't have been adducing you can't have been adducing he can't have been adducing we can't have been adducing you can't have been adducing they can't have been adducing
Interrogative form
Simple form
can I adduce? can you adduce? can he adduce? can we adduce? can you adduce? can they adduce?
V-ing form
can I be adducing? can you be adducing? can he be adducing? can we be adducing? can you be adducing? can they be adducing?
Perfect
can I have adduced? can you have adduced? can he have adduced? can we have adduced? can you have adduced? can they have adduced?
V-ing perfect
can I have been adducing? can you have been adducing? can he have been adducing? can we have been adducing? can you have been adducing? can they have been adducing?
Interro-negative form
Simple form
can't I adduce? can't you adduce? can't he adduce? can't we adduce? can't you adduce? can't they adduce?
V-ing form
can't I be adducing? can't you be adducing? can't he be adducing? can't we be adducing? can't you be adducing? can't they be adducing?
Perfect
can't I have adduced? can't you have adduced? can't he have adduced? can't we have adduced? can't you have adduced? can't they have adduced?
V-ing perfect
can't I have been adducing? can't you have been adducing? can't he have been adducing? can't we have been adducing? can't you have been adducing? can't they have been adducing?