जो कोई (jo koii)

pronoun A compound relative pronoun meaning 'whoever, whosoever' -- combines जो (jo, 'who/which') with कोई (koii, 'someone/anyone') to intensify the indefinite-relative sense. Used mainly in its correlative frame with वह/उसको/उसे in the following clause.
Sense 1 : whoever, whosoever (indefinite relative pronoun for people)
pronoun Works in the standard relative-correlative frame: जो कोई (jo koii) ... वह (vah) ..., 'whoever ... that person ...'. The correlative pronoun in the second clause is often वह (vah) or उसे (use) depending on case.
Synonyms: जो भी (jo bhii, more common everyday variant)
Frequency: medium
Cultural Note: You will hear जो भी (jo bhii) far more often in daily conversation -- जो कोई (jo koii) has a slightly more formal, almost proverbial ring, the kind of phrasing you find in moral sayings or announcements, like जो कोई सच बोलेगा, वही जीतेगा (jo koii sach bolegaa, vahii jiitegaa, 'whoever speaks the truth will win').
Common Mistakes: 1) Learners often drop the correlative pronoun in the second clause, saying only जो कोई करेगा, अच्छा होगा (jo koii karegaa, achchhaa hogaa) instead of including वह (vah) or a suitable stand-in -- Hindi usually wants the second clause explicitly picked back up. 2) जो कोई (jo koii) is slightly more formal/emphatic than जो भी (jo bhii); learners defaulting to जो कोई (jo koii) everywhere can sound a touch bookish in casual speech where जो भी (jo bhii) is more natural.
Sample Sentences:
जो कोई सच बोलेगा, वही जीतेगा। Whoever speaks the truth will win.
(jo koii sach bolegaa, vahii jiitegaa।)
Register: Literary -- Mood: Indicative -- Tense: Future -- Voice: Active
जो कोई यह नियम तोड़ेगा, उसे दंड मिलेगा। Whoever breaks this rule will be punished.
(jo koii yah niyam todegaa, use dand milegaa।)
Register: Formal -- Mood: Indicative -- Tense: Future -- Voice: Active
जो कोई इस काम को करना चाहे, वह आगे आए। Whoever wishes to do this work, let them come forward.
(jo koii is kaam ko karnaa chaahe, vah aage aae।)
Register: Formal -- Mood: Subjunctive -- Voice: Active
जो कोई भी सहायता माँगे, उसकी मदद करो। Whoever asks for help, help them.
(jo koii bhii sahaaytaa maange, uskii madad karo।)
Register: Formal -- Mood: Imperative -- Voice: Active
जो कोई देर से आता है, उसे बाहर बैठना पड़ता है। Whoever comes late has to sit outside.
(jo koii der se aataa hai, use baahar baithnaa padtaa hai।)
Register: Formal -- Mood: Indicative -- Aspect: Habitual -- Tense: Present -- Voice: Active
जो कोई इस रास्ते से गुज़रा, उसने वही दृश्य देखा। Whoever passed by this road saw the same sight.
(jo koii is raaste se guzraa, usne vahii drishy dekhaa।)
Register: Literary -- Mood: Indicative -- Aspect: Perfective -- Tense: Past -- Voice: Active
यदि जो कोई ईमानदार होता, तो यह संस्था आज बर्बाद न होती। If whoever were honest, this institution would not be ruined today.
(yadi jo koii iimaandaar hotaa, to yah sansthaa aaj barbaad n hotii।)
Register: Literary -- Mood: Counterfactual -- Aspect: Habitual -- Voice: Active
घोषणा में लिखा था कि जो कोई खोई हुई वस्तु लाएगा, उसे इनाम दिया जाएगा। The announcement said that whoever brings the lost item will be given a reward.
(ghoshnaa men likhaa thaa ki jo koii khoii huii vastu laaegaa, use inaam diyaa jaaegaa।)
Register: Formal -- Mood: Indicative -- Tense: Future -- Voice: Passive
शास्त्रों में कहा गया है कि जो कोई निष्काम भाव से कर्म करता है, वह मुक्ति पाता है। It is said in the scriptures that whoever acts without desire for reward attains liberation.
(shaastron men kahaa gayaa hai ki jo koii nishkaam bhaav se karm kartaa hai, vah mukti paataa hai।)
Register: Devotional -- Mood: Indicative -- Aspect: Habitual -- Tense: Present -- Voice: Passive