Word
لازم است که تسمهای را که تولید میکنیم، تست کنند.
Meaning
It is necessary for them to test the belt that we produce.
Part of speech
sentence
Pronunciation
Course
Breakdown of لازم است که تسمهای را که تولید میکنیم، تست کنند.
است
is
راrâ
definite direct object marker
کهke
that (conjunction)
تولید کردنtolid kardan
to produce
Questions & Answers about لازم است که تسمهای را که تولید میکنیم، تست کنند.
Why do we have the combination تسمهای را که (tasme-i râ ke) here instead of just putting را at the end of the clause?
When a noun is modified by a relative clause (starting with که) and is also the direct object of the main verb (in this case, they test "the belt"), the object marker را is placed immediately after the noun and its relative -i suffix, before the که. You don't wait until the end of the relative clause to add را.
The English translation says "the belt", but تسمهای has the -i suffix which usually means "a belt". Why is that?
In this structure, the -i is the "relative -i" rather than the indefinite article. It attaches to a noun to signal that a defining relative clause is about to describe it. Even though it looks like the indefinite "a", placing را immediately after it shows that the noun is specific and definite: "the belt that we produce".
Why is کنند (konand) in the subjunctive mood without می, while میکنیم (mikonim) is in the indicative mood with می?
The main action تست کنند (they test) is triggered by the phrase لازم است که (it is necessary that), which always requires the subjunctive mood. On the other hand, تولید میکنیم (we produce) is simply a factual description inside the relative clause, so it stays in the normal indicative mood.