प्रत्यय refers to the word segments added after any verb or word.

Kृत प्रत्यय are the affixes added to verbs to form nouns, adjectives, or indeclinables.

Aव्यय is formed by adding 'क्त्वा', '्यप', 'तुमुन' to verbs.

Examples include: 'क्त', 'क्तवत', 'िऱना', 'तव्यत', 'अनीयर', and 'यत'.

'क्त्वा' indicates the past action. For example, 'दृश + क्त्वा = दृष्टवा'.

'तु मुन' indicates purpose in action, e.g., 'गम + तु मुन = गन्तुम'.

'क्त्वा' is used without a prefix, while '्यप' is used when a prefix is present.

'्यप' replaces 'क्त्वा' when there is a prefix before the root verb.

'पूज + क्त्वा = पूजकयत्वा', meaning 'to be worshipped'.

'तव्यत' is used to form adjectives from verbs.

Confusing 'कृत प्रत्यय' and 'तद्धित प्रत्यय'.

'हन + क्त्वा = हत्वा', meaning 'after killing'.

'प्र + नम् + ्यप = प्रणम्य', meaning 'humbled'.

अव्यय refers to words with immutable forms, meaning they do not change.

'इति' is used to denote completion or to close phrases.

By using विशेषणों प्रत्यय, like 'स्त्री प्रत्यय'.

Certain words with प्रत्यय like 'क्त्वा' are treated as अव्यय.

'आगत्य' means 'having come' or 'arriving'.

'तु मुन' indicates the time aspect in expressions.