Valmiki Ramayana Aranya Kanda Sarga 9 Shloka 3

अत्र here (in this context), कामजानि born out of lust, व्यसनानि vices, त्रीण्येव three only, उत indeed, भवन्ति are there, मिथ्यावाक्यम् speaking untruth, परमकम् greatest of all, परदाराभिगमनम् have sexual relation with others' wives विना वैरम् without enmity, रौद्रता violent acts, उभौ both, तस्मात् therefore, गुरुतरौ are of serious nature.

There are three kinds of vices born out of lust. First, speaking untruth, second, having sexual relation with others' wives and third, resorting to violence with no enmity. The later two vices are of serious nature.