English verb conjugation
MUST DEDUCE

Regular verb: deduce - deduced - deduced

Affirmation

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

Negation

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

Interrogative form

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

Interro-negative form

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