There are 3 different groups of verbs in French. More of of the verbs (about 90%) of the verbs are in the 1st groupe, which is luckily the easiest to use.

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1ST GROUP :

All the verbs of this group finish with "er".
- Manger (To eat)
- Travailler (To work)
- Nager (To swim)

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"CHANTER" (TO SING)

Je chante
Tu chantes
Il/Elle chante
On chante (Neutral)
Nous chantons
Vous chantez
Ils/Elles chantent

As you can see, you just have to remove the "er" and to replace it with e, es, e, e, ons, ez, ent.

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2ND GROUP :

All the verbs of this group finish with "ir".
- Finir (To finish, to end)
- Agir (To act)

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"CHOISIR" (TO CHOOSE)

Je choisis
Tu choisis
Il/Elle choisit
On choisit
Nous choisissons
Vous choisissez
Ils/Elles choisissent

You have to remove the "ir" and to replace it with is, is, it, it, issons, issez, issent.

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3RD GROUP :

It's the most complicated one, and most of native french people don't even really know which verbs are inside this group.
The verbs can finish with "oire", "oudre", "tre"... and even "ir", that can be confusing with verbs of the 2nd group !
I can tell you here the conjugations of all verbs from the 3rd group, I will just give you some examples and tell you the conjugation of a very usefull verb : aller (to go).

- Dormir : To sleep
- Mettre : To put
- Battre : To fight
- Vouloir : To want
- Joindre : To join
- ...

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"ALLER" (TO GO)

Je vais
Tu vas
Il/Elle va
On va
Nous allons
Vous allez
Ils vont

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EXERCISE :

Translate those few sentences with the vocabulary below. Send me as usual your have translated, I will correct it =)

"She wants to choose a book."
"She speaks with her mother."
"We finish a work."

You need some vocabulary of my others lessons ! ^^

Vocabulary
A work: Un travail
Her/His FEMININE NOUN: Sa
Her/His MASCULINE NOUN: Son
To choose: Choisir
To speak: Parler
With: Avec