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 cannot deduce you cannot deduce he cannot deduce we cannot deduce you cannot deduce they cannot deduce	I cannot be deducing you cannot be deducing he cannot be deducing we cannot be deducing you cannot be deducing they cannot be deducing
Perfect	V-ing perfect
I cannot have deduced you cannot have deduced he cannot have deduced we cannot have deduced you cannot have deduced they cannot have deduced	I cannot have been deducing you cannot have been deducing he cannot have been deducing we cannot have been deducing you cannot have been deducing they cannot 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 I not deduce? can you not deduce? can he not deduce? can we not deduce? can you not deduce? can they not deduce?	can I not be deducing? can you not be deducing? can he not be deducing? can we not be deducing? can you not be deducing? can they not be deducing?
Perfect	V-ing perfect
can I not have deduced? can you not have deduced? can he not have deduced? can we not have deduced? can you not have deduced? can they not have deduced?	can I not have been deducing? can you not have been deducing? can he not have been deducing? can we not have been deducing? can you not have been deducing? can they not have been deducing?