duolingo should have sections to look up vocab and conjugations
if duolingo had section for vocab and conjugations it could be an all in one resource for language learning. Spanishdict.com is good for spanish but other languages are lacking a comprehensive vocab/conjugation resource.
For languages that have the Words panel, you can click verbs and then choose More Details.
A pop-up will show you example sentences and conjugations.
Note: Only for words that you have already encountered in the course.
yes i felt the same thing during study. that's why i have made this excel file.
please check this link: https://drive.google.com/open?id=0B_JwtJm8LPQmVk5fM21QQkgyUjA