à l'aide de
Grammar & Usage
How it works
This prepositional locution is formed by the preposition 'à', the elided definite article and noun 'l'aide', and the preposition 'de'. It functions adverbially to indicate the instrument, method, or person assisting in an action. The preposition 'de' elides to 'd'' before a vowel or mute 'h', and contracts to 'du' or 'des' when combined with the definite articles 'le' or 'les'.
Sample sentences
Il a réussi à ouvrir la boîte à l'aide d'un tournevis.
He managed to open the box using a screwdriver.
Elle a terminé ses devoirs à l'aide de son professeur.
She finished her homework with the help of her teacher.
Les scientifiques analysent les données à l'aide d'un nouvel algorithme.
Scientists are analyzing the data with the help of a new algorithm.
Quick facts
Mnemonic
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Example
Il a réussi à ouvrir la boîte à l'aide d'un tournevis.
He managed to open the box using a screwdriver.
Elle a terminé ses devoirs à l'aide de son professeur.
She finished her homework with the help of her teacher.
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