Breakdown of Mes amies sont allées à la piscine.
mon
my
aller
to go
la piscine
the swimming pool
l'amie
the friend (f)
Questions & Answers about Mes amies sont allées à la piscine.
Why does allées have an extra -es at the end?
Because it's in the passé composé using the helping verb être (sont). When a verb uses être, its past participle has to match the subject in gender (masculine or feminine) and number (singular or plural). The subject Mes amies is a group of women (feminine plural), so we add an -e for feminine and an -s for plural to the base word allé.
How do we know from the French sentence that the friends are female?
Why do we use sont instead of ont to say "went"?
Most French verbs use avoir (to have) to form the passé composé, but aller (to go) is one of the special verbs that use être (to be) instead. These are typically verbs showing motion or a change of state, often remembered by learners using the DR & MRS VANDERTRAMP list.
Why is it à la piscine?