must deduce
Verbe régulier : deduce - deduced- deduced
Traduction française : déduire 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must deduce
you must deduce
he must deduce
we must deduce
you must deduce
they must deduce 	I must be deducing
you must be deducing
he must be deducing
we must be deducing
you must be deducing
they must be deducing	I must have deduced
you must have deduced
he 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
he must have been deducing
we must have been deducing
you must have been deducing
they must have been deducing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not deduce
you must not deduce
he must not deduce
we must not deduce
you must not deduce
they must not deduce 	I must not be deducing
you must not be deducing
he must not be deducing
we must not be deducing
you must not be deducing
they must not be deducing	I must not have deduced
you must not have deduced
he must not have deduced
we must not have deduced
you must not have deduced
they must not have deduced	I must not have been deducing
you must not have been deducing
he must not have been deducing
we must not have been deducing
you must not have been deducing
they must not have been deducing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I deduce?
must you deduce?
must he deduce?
must we deduce?
must you deduce?
must they deduce? 	must I be deducing?
must you be deducing?
must he be deducing?
must we be deducing?
must you be deducing?
must they be deducing? 	must I have deduced?
must you have deduced?
must he 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 he have been deducing?
must we have been deducing?
must you have been deducing?
must they have been deducing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not deduce?
must you not deduce?
must he not deduce?
must we not deduce?
must you not deduce?
must they not deduce? 	must I not be deducing?
must you not be deducing?
must he not be deducing?
must we not be deducing?
must you not be deducing?
must they not be deducing? 	must I not have deduced?
must you not have deduced?
must he not have deduced?
must we not have deduced?
must you not have deduced?
must they not have deduced? 	must I not have been deducing?
must you not have been deducing?
must he not have been deducing?
must we not have been deducing?
must you not have been deducing?
must they not have been deducing?