was swimming, used to swim
Elle a perdu la clé de son casier alors qu'elle nageait dans la piscine.
She lost the key to her locker while she was swimming in the pool.
Mon père nageait bien quand il était jeune.
My father was a good swimmer when he was young.
Thomas nageait.
Thomas was swimming.
Elle a perdu la clé de son casier pendant qu'elle nageait dans la piscine.
She lost the key to her locker while she was swimming in the pool.