Questions & Answers about Ik herken zijn gezicht.
Herkennen means to recognize: you see, hear, or notice something and realize you know it from before.
By contrast, kennen usually means to know or to be familiar with.
- Ik ken hem = I know him
- Ik herken hem = I recognize him
So in Ik herken zijn gezicht, the idea is that the face looks familiar and you realize whose face it is.
Because herkennen is the infinitive, meaning to recognize.
In a normal present-tense sentence with ik, Dutch uses the verb stem:
- infinitive: herkennen
- stem: herken
- sentence: Ik herken zijn gezicht
This is the regular pattern for many verbs:
- werken → ik werk
- horen → ik hoor
- herkennen → ik herken