Breakdown of آیا این دایناسور روی دو پا دویده است؟
این
this
رویruye
on
آیاâyâ
whether (question particle)
دوdo
two
Questions & Answers about آیا این دایناسور روی دو پا دویده است؟
Since dinosaurs lived millions of years ago, why does this sentence use the present perfect tense (دویده است) instead of the simple past (دوید)?
This is a great example of the evidential use of the present perfect in Farsi. Because the speaker was not there to personally witness the dinosaur running, and is instead making an inference based on scientific evidence (like fossils), Farsi prefers the present perfect (دویده است) to report this unseen past event.
Why is it دو پا (two leg) instead of using a plural form for legs?
In Farsi, whenever you use a number, the noun that follows it must always stay in its singular form. So, you say دو پا (two leg) rather than adding a plural suffix like ها.
Is the word آیا required to ask this question?
No, آیا is optional. It is a question word used to introduce a yes/no question, mostly in written or slightly formal Farsi. In everyday spoken Farsi, you would usually drop آیا and just ask the question using a rising tone of voice at the end of the sentence.
How is the verb دویده است put together?
The infinitive for to run is دویدن. To make the present perfect tense, you take the past stem (دوید), add the letter ه to make the past participle (دویده), and then add the present tense of to be for the third-person singular, which is است.