merken

In a sentence

• Ik merk dat de lucht vandaag heel schoon is.

  I notice that the air is very clean today.

  In this sentence, "merken" is used in its sensing context, meaning to become aware of or perceive something.

• Je kunt merken dat ze hard hebben gewerkt aan dit project.

  You can notice that they have worked hard on this project.

  Here, "merken" is used to express noticeability, indicating that the effects of effort or work can be observed.

• We moeten de producten met onze logo's merken voordat we ze verkopen.

  We must brand the products with our logos before selling them.

  In this case, "merken" is used in its marking or branding context, indicating the physical marking or labeling of items.