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In a sentence
Nemôžem zabudnúť na vaše oči.
I can't forget your eyes.
Proste nemôžem na teba zabudnúť.
I just can't forget about you.
Tom musel zabudnúť na svoj sľub.
Tom must have forgotten his promise.
Nemôžem na ňu zabudnúť.
I can't forget her.
Examples from Tatoeba (CC BY 2.0 FR).
Source
Slovak National Corpus (SNK) ↗English gloss from the frequency publish path. Example sentences from Tatoeba (CC BY 2.0 FR).
Full attribution on References.