Gerund use: ‘encouraging’ functions as an uncountable noun meaning the act or process of giving encouragement.
She needs a lot of encouraging before she'll perform on stage.
Elle a besoin de beaucoup d'encouragement avant de monter sur scène.
encouragegerund / present participle Used when the present participle 'encouraging' functions as an adjective, e.g. 'an encouraging result'.
The preliminary findings were encouraging.
Les résultats préliminaires étaient encourageants.