In French, we classify verbs into three groups.
1st group
2nd group
3rd group
I give you the example of the verb sing, present
CHANTER (1st groupe "er")
Je chantE
Tu chantES
Il, elle, on chantE
Nous chantONS
Vous chantEZ
Ils, elles, chantENT
All verbs ending in "er", all have the same termination:
e, es, e, ons, ez, ent
CHANTER à l'imparfait (the imperfect)
Je chantAIS
Tu chantAIS
Il, elle, on chantAIS
Nous chantIONS
Vous chantIEZ
Ils, elles, chantAIENT
If you want to know something, I can help you.