Learn Portuguese (Portugal): Vocês foram à festa na sexta-feira? Foi divertida? - Did you go to the party on Friday? Was it fun?

They actually share the exact same forms in the past tense! The highly irregular verbs ir (to go) and ser (to be) are completely identical in the simple past. In this sentence, foram means "went" (from ir) because they went to a place. Foi means "was" (from ser) because it describes the party. You have to use context to tell them apart.

Why is there an accent on the word à?

The word à with a grave accent is a contraction. It combines the preposition a (to) with the feminine word for "the", which is also a. Together, a + a becomes à (to the).

Why do we use na before sexta-feira?

In English, we say "on Friday", but Portuguese uses the preposition em (in/on) plus the word "the" for days of the week. Because sexta-feira is a feminine noun, we combine em + a to get na.

Why does the second sentence just say Foi divertida instead of using a word for "it"?