English verb conjugation
CAN DEDUCE

Regular verb: deduce - deduced - deduced

Affirmation

Simple form	V-ing form
I can deduce you can deduce he can deduce we can deduce you can deduce they can deduce	I can be deducing you can be deducing he can be deducing we can be deducing you can be deducing they can be deducing
Perfect	V-ing perfect
I can have deduced you can have deduced he can have deduced we can have deduced you can have deduced they can have deduced	I can have been deducing you can have been deducing he can have been deducing we can have been deducing you can have been deducing they can have been deducing

Negation

Simple form	V-ing form
I can't deduce you can't deduce he can't deduce we can't deduce you can't deduce they can't deduce	I can't be deducing you can't be deducing he can't be deducing we can't be deducing you can't be deducing they can't be deducing
Perfect	V-ing perfect
I can't have deduced you can't have deduced he can't have deduced we can't have deduced you can't have deduced they can't have deduced	I can't have been deducing you can't have been deducing he can't have been deducing we can't have been deducing you can't have been deducing they can't have been deducing

Interrogative form

Simple form	V-ing form
can I deduce? can you deduce? can he deduce? can we deduce? can you deduce? can they deduce?	can I be deducing? can you be deducing? can he be deducing? can we be deducing? can you be deducing? can they be deducing?
Perfect	V-ing perfect
can I have deduced? can you have deduced? can he have deduced? can we have deduced? can you have deduced? can they have deduced?	can I have been deducing? can you have been deducing? can he have been deducing? can we have been deducing? can you have been deducing? can they have been deducing?

Interro-negative form

Simple form	V-ing form
can't I deduce? can't you deduce? can't he deduce? can't we deduce? can't you deduce? can't they deduce?	can't I be deducing? can't you be deducing? can't he be deducing? can't we be deducing? can't you be deducing? can't they be deducing?
Perfect	V-ing perfect
can't I have deduced? can't you have deduced? can't he have deduced? can't we have deduced? can't you have deduced? can't they have deduced?	can't I have been deducing? can't you have been deducing? can't he have been deducing? can't we have been deducing? can't you have been deducing? can't they have been deducing?