Learn Italian: Questa borsa, la possiamo riutilizzare per la spesa. - This bag, we can reuse it for the groceries.

This is called left dislocation. By putting the object (Questa borsa) at the very beginning of the sentence, we emphasize what we are talking about. In Italian, when you move a direct object to the front like this, you must repeat it with a matching pronoun before the verb. Here, we use la to match the feminine singular borsa.

Since there is an infinitive (riutilizzare), could the pronoun la attach to the end of it?

Yes! When you have a helper verb like possiamo followed by an infinitive, the pronoun can either go before the conjugated verb (like in this sentence: la possiamo riutilizzare) or attach to the end of the infinitive after dropping its final -e (possiamo riutilizzarla). Both are perfectly correct.

Is the comma after Questa borsa necessary?

Yes, in written Italian, a comma is typically used in this structure to separate the emphasized fronted object (Questa borsa) from the rest of the sentence. It reflects the slight natural pause you make in spoken Italian to highlight the topic.

Could I use the word lo shopping instead of la spesa here?