'TALENT' word cannot be formed using the letters of the given word CONSTITUTIONAL because letter E is not present in the given word CONSTITUTIONAL .

The word 'SECURE' cannot be formed from 'COURAGEOUS' because E letter is used twice in 'Secure' but letter 'E' is given only one time in word 'COURAGEOUS'.

From the given word, 'TUTOR' is the only word which can be formed.

From the given word, 'CHANGE' is the only word which cannot be form due to the absence of letter 'G' in MERCHANDISE

From the given word PORTFOLIO ,
'PORTICO' is the only word which cannot be formed due to absence of letter 'C'.

From the given word INTERVENTION ,
'ENTERTAIN' is the only word which can not be formed due to the absence of letter 'A' in given word INTERVENTION .

By using the letter of the given word, 'COMMUNICATION'
'UNISON' is the only word which cannot be formed due to the absence of letter 'S' in word 'COMMUNICATION' .

By using the letters of the given word Attraction ,
'Caution' is the only word which cannot be formed due to the absence of letter 'U'.

By using the letters of the given word Workshop
'Crow' is the only word which cannot be formed due to the absence of letter 'C'.

By using the letters of the given word 'Reasonable ',
'Brain' is the only word which cannot be formed due to the absence of letter 'i'.