Breakdown of یک ماه طول میکشد تا عفونت خوب شود.
یکyek
one / a, an
شدنshodan
to become
خوبkhub
well / good
طول کشیدنtul keshidan
to take (time) / to last
Questions & Answers about یک ماه طول میکشد تا عفونت خوب شود.
Why do we use the subjunctive verb خوب شود (xub shavad) at the end of this sentence?
This sentence uses the core structure for duration: طول کشیدن (tul keshidan) + تا (tâ) + present subjunctive. Whenever you express that it takes an amount of time for an action to happen, the final action's verb must be in the present subjunctive form.
Where is the word for "it" in طول میکشد (tul mi-keshad)?
There is no word for "it" because Farsi does not use dummy subjects like English does. Instead, the time period itself acts as the subject. The Farsi sentence literally translates to "One month pulls length..."
If تا (tâ) usually means "until", why does the English translation say "for"?
While we translate it as "for the infection to heal" to sound natural in English, the Farsi logic relies on "until". You can think of the literal Farsi meaning as "It takes one month until the infection gets better."
How does خوب شود (xub shavad) mean "to heal"?
خوب شود (xub shavad) is the present subjunctive form of the compound verb خوب شدن (xub shodan), which literally means "to become good." In Farsi, "becoming good" is the most natural way to say that an illness, wound, or infection heals.