Breakdown of به محض باز کردن پانسمان، متوجه شدیم که زخم عمیق است.
بودنbudan
to be
کهke
that (conjunction)
متوجه شدنmotevajjeh shodan
to realize/notice
باز کردنbâz kardan
to open
Questions & Answers about به محض باز کردن پانسمان، متوجه شدیم که زخم عمیق است.
How does the phrase be mahz-e link to the action in the first half of the sentence?
Be mahz-e (upon / immediately after) must be followed by an Ezafe. Here, it connects to the long infinitive bâz kardan (to open / opening). Together, be mahz-e bâz kardan-e forms a formal temporal phrase meaning 'upon the opening of'.
Why is there an Ezafe connecting bâz kardan and pânsemân, instead of using the object marker râ?
Because bâz kardan is functioning as a noun ('the opening') here, not an active verb. In Farsi, when a verbal noun takes an object, they are linked by an Ezafe. It translates literally as 'the opening of the bandage'.
Why does the sentence end with the present tense ast (is) when the main verb motevajjeh shodim (we realized) is in the past tense?
Farsi does not strictly force tense agreement (backshifting) like English does. If you realize something in the past, but the fact is still true (the wound is still deep), Farsi keeps the present tense ast inside the ke (that) clause. An English speaker might expect to say 'was deep', but in Farsi, using the past tense there would imply the wound is no longer deep.
Does the verb motevajjeh shodan (to realize/notice) always require ke after it?
It requires ke (that) when you are introducing a full subordinate clause with its own subject and verb, like zakhm amigh ast. If you were simply noticing a physical object rather than a fact, you would drop and use the direct object marker instead (for example: 'We noticed the deep wound').