Questions & Answers about De sneeuw smelt in de zon.
The infinitive is smelten. To conjugate the present tense you drop -en to get the stem smelt. Then:
• ik smelt
• jij smelt (in questions/inversions: smelt jij?)
• hij/zij/het smelt
Since the stem already ends in -t, you don’t add another -t for the 3rd person singular. For the plural you use smelten (wij smelten, jullie smelten, zij smelten).