Learn French: Il amène son ami à la fête ce soir. - He is bringing his friend to the party tonight.

Amener (to bring) is a stem-changing verb. When you conjugate it in the present tense for je, tu, il/elle/on, or ils/elles, the first e changes to è. This changes the pronunciation from a soft "uh" to an open "eh" sound. For "we" and "you" plural, it keeps the original spelling: nous amenons and vous amenez.

Could I use apporte instead of amène to mean "bringing" here?

No. In French, you must choose your verb based on what you are bringing! Use amener for people and animals (like son ami) because they can walk with you. Use apporter for objects that you physically carry, like a cake or a gift.

How exactly does ce soir mean "tonight"?

French doesn't have a single specific word for "tonight." Instead, you literally say "this evening." Ce is a demonstrative adjective meaning "this," and it is used here to match the masculine noun soir (evening).

Is there a liaison (spoken link) between son and ami?

Yes! Because son ends in a consonant and ami starts with a vowel, you must pronounce the "n" to link the words together. It sounds like "sohn-nah-mee." This is a mandatory liaison that helps the sentence flow smoothly.