Breakdown of Şirketin cirosu geçen yıl çok artmış olsa gerek.
çok
a lot of / many
olmak
to be
şirket
company
yıl
year
Questions & Answers about Şirketin cirosu geçen yıl çok artmış olsa gerek.
How does artmış olsa gerek translate to "must have increased"?
This is the core structure for strong logical deductions. The main verb artmak (to increase) takes the past suffix -mIş, and is followed by olsa gerek. Together, -mIş olsa gerek expresses a strong present deduction about a past event: "must have increased".
Could we just use artmış on its own instead of artmış olsa gerek?
Using just artmış would mean "apparently it increased" or "I heard it increased" (hearsay). By adding olsa gerek, you change the meaning from mere hearsay to a strong logical deduction based on some evidence: "it must have increased".
The lesson is about present logical deductions. Why does this sentence refer to geçen yıl (last year)?
The act of deducing is happening right now in the present, but you are making a deduction about an event that already happened. The -mIş suffix attached to artmak pushes the action itself to the past, while the deduction framework (olsa gerek) remains in the present.
Why is there an -s- and a -u at the end of cirosu?