This is the 16126th most frequent Turkish word.
verememe
The inability to give.
In this sentence, 'imzalayamamam'ın' the verb 'imzalayamak' (to sign) is negated with suffix '-ma', and further expresses incapability combined with the person suffix '-m' and genitive 'ın'.
Bu belgeyi imzalayamamamın nedeni, onun yasal olmadığını düşünmemdir.
The reason I cannot sign this document is that I don't believe it is legal.
Here, 'edememesi' originates from 'etmek' (to do/make), it is negated and conjugated to denote third person incapability.
Kendi hatasını kabul edememesi, sorunun çözümünü zorlaştırıyor.
His inability to accept his mistake complicates solving the issue.
The word 'açamamanız' is formed from 'açamak' (to open/unlock) negated with '-ma', indicating second person plural/formal incapability.