nemohol

In a sentence

• Snažil som sa, ale to nemohol pochopiť.

  I tried, but I couldn't understand it.

  Here, 'nemohol' indicates inability to comprehend something despite effort.

• Nemohol ísť do školy, pretože bol chorý.

  He couldn't go to school because he was sick.

  In this sentence, 'nemohol' expresses inability to attend school due to health reasons.

• Nemohol som si spomenúť na jeho meno.

  I couldn't remember his name.

  Here, 'nemohol' signifies inability to recall a specific piece of information.