Peut-être la comète est-elle dangereuse.

Questions & Answers about Peut-être la comète est-elle dangereuse.

Why is it la comète est-elle? Doesn't that literally translate to 'the comet is she'?
Yes, it looks like a double subject! When you start a sentence with certain adverbs like peut-être, French requires subject-verb inversion. However, if the subject is a noun (like la comète) rather than a pronoun, you can't just swap the noun and the verb (you cannot say peut-être est la comète). Instead, you leave the noun before the verb and add a matching pronoun (elle) after the verb. This is called complex inversion.
Is this the only way to phrase this? It feels very formal.
You're right, complex inversion is quite formal and is mostly used in writing or formal speech. In everyday spoken French, you can avoid the inversion entirely by adding que after the adverb. It is much more common to hear: Peut-être que la comète est dangereuse.
Could I just move peut-être to the middle of the sentence to avoid the complex inversion?
Absolutely. If you don't put peut-être at the very beginning of the sentence, no inversion is triggered. You can simply say La comète est peut-être dangereuse. This is another very natural and common way to phrase it in everyday French.
Why is there a hyphen in est-elle?
Whenever you invert a verb and a subject pronoun (like elle, il, on, vous, etc.), you must connect them with a hyphen. This standard rule applies whether you are asking a question or, as in this sentence, doing an inversion triggered by an adverb like peut-être.

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