One of the most comon mistakes in french is when people pronounce the "ent" at the end of a plural verb.

Note that when the verb is for a plural, ex ils, elles, lui et elle, "ent" at the end of the verb is not said.

Ils vendent. (they are selling) the verb is pronounced "vende".

When you say "je" the "e" at the end of your verb is the ending
ex: je marche (i am walking), or, depending on the verb, there can no ending that you add.
ex: j'ai (i have)

When you say "tu" , there is usually an s
ex: tu marches (you are walking)

When you say "il" or "elle" there is no ending. (except in the past tense, wwhere you usually add a "T")
ex: il a (he has)

When you say "nous" you add "ons" at the end of your verb
ex: nous marchons (we are walking) *note that the s is silent*

With "vous", you add ez at the end. (this is pronounced as the word et)
ex: vous marchez (you are walking) *this is in the plural*

That brings you back to elles and ils.

Some of the more comon verbs (the first you would learn) are avoir (to have) and etre (to be)


Avoir:
j'ai
tu as
il/elle a
nous avons
vous avez
ils/elles ont (the t is silent!)

Etre:
je suis
tu es
il/elle est
nous sommes
vous etes
ils/elles sont.
(this is an irreguallar verb.)