Yoga Sutra

Samadhi Pada

Sutra 1.6
प्रमाण विपर्यय विकल्प निद्रा स्मृतयः
pramāṇa viparyaya vikalpa nidrā smr̥tayaḥ

Right knowledge, misconception,  fictitious perception,  sleep and memory.

pramaana = right knowledge
viparyaya = wrong notion, false idea
vikalpa = imagination, fictitious perception
nidraa = sleep
smritayah = memory

The five kinds of modifications are right knowledge, misconception, fictitious perception, sleep and memory. Pramaana is translated here as right knowledge which gives the nearest meaning. There is no equal word in English. Pramaana is a well established hypothesis which is widely accepted as a fact.

Commentary by Sage Vyasha

Right notion, Misconception, Imagination, Sleep and Memeory

Commentary by Swami Vivekananda

(These are) right knowledge, indiscrimination, verbal delusion, sleep, and memory.

Commentary by Sri Osho

THEY ARE RIGHT KNOWLEDGE, WRONG KNOWLEDGE, IMAGINATION, SLEEP AND MEMORY.