Breakdown of Suçu kasten işlemediğini anlıyoruz.
anlamak
to understand
suç
crime
işlemek
to commit (a crime)
kasten
intentionally / on purpose
Questions & Answers about Suçu kasten işlemediğini anlıyoruz.
How does işlemediğini break down to mean "that she did not commit"?
It uses the factive clause structure you are learning: işle- (to commit) + -me- (negative) + -diğ- (the -dik suffix, mutated because a vowel follows) + -in (her/his, 3rd person possessive) + -i (accusative case). Put together, it acts as a noun phrase meaning "her not-committing."
Why is there an extra -i at the very end of işlemediğini?
That is the accusative case marker. The main verb of the sentence is anlıyoruz (we understand), and we need to show what we understand. Because the entire action ("that she didn't commit") is the specific direct object of "understand", the final word of that clause gets the accusative ending.
Why are there two words with the accusative case in this sentence (Suçu and işlemediğini)?
Because there are two different verbs acting on two different objects! Suçu (the crime) gets the accusative case because it is the specific direct object of işlemek (to commit). Then, the whole clause ending in işlemediğini gets the accusative case because it is the direct object of the main verb anlıyoruz (we understand).
Could işlemediğini also mean "that you did not commit"?