Learn Italian: Normalmente, lavoriamo bene insieme. - Normally, we work well together.

Normalmente is an adverb formed from the adjective normale. Usually, you build an adverb by adding -mente to the feminine singular form of an adjective. However, when an adjective ends in -le or -re (like normale), you must drop that final -e before adding -mente. This rule exists to make the word easier and faster to pronounce!

Why do we use bene instead of buono here?

Bene means "well" and is an adverb, which means it modifies an action—in this case, how we work (lavoriamo). Buono means "good" and is an adjective, so it can only describe a noun (like a good colleague or a good job). Even at an upper-intermediate level, it is easy to mix these up when speaking quickly, but remember that actions always take bene.

Could I use assieme instead of insieme at the end of this sentence?

Yes, you absolutely can. Insieme and assieme both mean "together" and are completely interchangeable in this context. Insieme is just slightly more common in everyday spoken Italian.

Is it possible to move normalmente to a different part of the sentence?

Yes, Italian word order for adverbs of frequency is quite flexible. You could say Lavoriamo bene insieme normalmente, putting the adverb at the end. However, placing it at the very beginning with a comma is extremely natural when you want to establish the general context or "rule" for the whole statement right away, exactly as you would in English.