I go down. (descendre)
Je descends.
You go down. (descendre) (informal/singular)
Tu descends.
He/She goes down. (descendre)
Il/Elle descend.
We go down. (descendre)
Nous descendons.
You go down. (descendre) (formal/plural)
Vous descendez.
They go down. (descendre) (male/female)
Ils/Elles descendent.