Learn Italian: Dopodomani partirò per il mare. - The day after tomorrow I will leave for the seaside.

The accented -ò is the future tense ending for the io (I) form. To make the future tense of an -ire verb like partire, you drop the final -e from the infinitive and add the future endings. So, partire becomes partirò (I will leave).

Why do we use per before il mare instead of a?

When you state a destination with the verb partire (to leave), you generally use the preposition per (for). It works just like English: you leave for the seaside (partire per il mare). If you used the verb andare (to go), you would use a and say vado al mare instead.

How does the word dopodomani work?

It is a compound word made of dopo (after) and domani (tomorrow). Italians combine them into one single word, dopodomani, to simply mean the day after tomorrow.