योगवासिष्ठः yogavāsiṣṭhaḥ - book-5, chapter-18, verse-16

फलसंधीनि कर्माणि नानाचारमयानि च ।
सुखदुःखावपूर्णानि तानि वक्तुं न शक्नुमः ॥ १६ ॥

phalasaṃdhīni karmāṇi nānācāramayāni ca ,
sukhaduḥkhāvapūrṇāni tāni vaktuṃ na śaknumaḥ 16

16. phalasaṃdhīni karmāṇi nānācāramayāni ca
sukhaduḥkhāvapurṇāni tāni vaktuṃ na śaknumaḥ

16. phalasaṃdhīni nānācāramayāni ca sukhaduḥkhāvapurṇāni
tāni karmāṇi vaktuṃ na śaknumaḥ

16. Actions (karma) that are linked to results, comprising various behaviors, and filled with both joy and sorrow – such (actions) we are unable to describe.

Words meanings summery:

• फलसंधीनि (phalasaṁdhīni) - Actions that inevitably bring about consequences. (connected with results, leading to results)

• कर्माणि (karmāṇi) - Human actions and their consequences (karma). (actions, deeds, activities, duties)

• नानाचारमयानि (nānācāramayāni) - consisting of various customs, made of diverse behaviors

• च (ca) - and

• सुखदुःखावपुर्णानि (sukhaduḥkhāvapurṇāni) - filled with pleasure and pain

• तानि (tāni) - Referring to the described actions (karma). (those, them)

• वक्तुं (vaktuṁ) - to speak, to describe

• न (na) - not, no

• शक्नुमः (śaknumaḥ) - we are able, we can

Words meanings and morphology

फलसंधीनि (phalasaṁdhīni) - Actions that inevitably bring about consequences. (connected with results, leading to results)

(adjective)

Nominative, neuter, plural of phalasaṃdhin

phalasaṁdhin - connected with results, yielding results

Compound type : tatpurusha (phala+saṃdhin)

• phala – fruit, result, consequence, reward
  noun (neuter)
• saṃdhin – connected, joined, united, relating to juncture
  adjective
  From root dhā with prefix sam, and suffix -in
  Prefix: sam
  Root: dhā (class 3)

Note: Agrees with karmāṇi.

कर्माणि (karmāṇi) - Human actions and their consequences (karma). (actions, deeds, activities, duties)

(noun)

Nominative, neuter, plural of karma

karma - action, deed, work, ritual, destiny (karma)

From root kṛ (to do)

Root: kṛ (class 8)

Note: Subject of the sentence.

नानाचारमयानि (nānācāramayāni) - consisting of various customs, made of diverse behaviors

(adjective)

Nominative, neuter, plural of nānācāramaya

nānācāramaya - consisting of various customs/conducts

Compound type : tatpurusha (nānā+ācāra+maya)

• nānā – various, diverse, manifold
  indeclinable
• ācāra – custom, conduct, behavior, practice
  noun (masculine)
  From prefix ā + root car (to move, conduct)
  Prefix: ā
  Root: car (class 1)
• maya – made of, consisting of, full of
  suffix/adjective
  Suffix -maya indicates material or composition.

Note: Agrees with karmāṇi.

च (ca) - and

(indeclinable)

Note: Connects adjectives.

सुखदुःखावपुर्णानि (sukhaduḥkhāvapurṇāni) - filled with pleasure and pain

(adjective)

Nominative, neuter, plural of sukhaduḥkhāvapurṇa

sukhaduḥkhāvapurṇa - filled with pleasure and pain

Compound type : tatpurusha (sukha+duḥkha+āvapurṇa)

• sukha – pleasure, joy, happiness, ease
  noun (neuter)
• duḥkha – pain, sorrow, misery, suffering
  noun (neuter)
• āvapurṇa – full, complete, filled
  adjective
  Past Passive Participle
  Likely a variant or specific usage of 'āpūrṇa' (from ā + pṛ, to fill) or a similar formation to mean 'filled'.
  Prefix: ā
  Root: pṛ (class 3)

Note: Agrees with karmāṇi.

तानि (tāni) - Referring to the described actions (karma). (those, them)

(pronoun)

Accusative, neuter, plural of tad

tad - that, he, she, it

Note: Object pronoun.

वक्तुं (vaktuṁ) - to speak, to describe

(verb)

infinitive of vaktu

infinitive

Infinitive form from root vac

Root: vac (class 2)

Note: Modifies śaknumaḥ.

न (na) - not, no

(indeclinable)

Note: Negates the verb.

शक्नुमः (śaknumaḥ) - we are able, we can

(verb)

1st person , plural, active, present (laṭ) of śak

present tense, indicative mood

First person plural, present active, parasmaipada, from root śak (class 5 'to be able')

Root: śak (class 5)