Breakdown of Sia l'ombrello sia l'impermeabile sono indispensabili.
essere
to be
l'ombrello
the umbrella (m)
sia
both / and (when used as sia... sia)
l'impermeabile
the raincoat (m)
indispensabile
indispensable
Questions & Answers about Sia l'ombrello sia l'impermeabile sono indispensabili.
Could I say sia l'ombrello che l'impermeabile instead of using sia twice?
Why is the verb sono plural if l'ombrello and l'impermeabile are both singular nouns?
Even though each item is singular, sia ... sia joins them into a compound subject (just like "both X and Y" in English). Since you are talking about two things together, the verb must be plural.
Why does indispensabili end in -i?
Should I drop the 'a' in the first sia since the next word starts with a vowel?
No, you do not drop the vowel or use an apostrophe here. Unlike articles (like how lo becomes l' before ombrello), the conjunction sia never drops its final vowel. You just write and say sia l'ombrello.
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