truthfully

In a sentence

I told him truthfully that I had just returned from my vacation

मैले उसलाई म भर्खर बिदाबाट फर्केको हुँ भनेर सत्य भनेँ।

he answered the question as truthfully as he could

उसले सकेसम्म सत्यतापूर्वक प्रश्नको उत्तर दियो।