कम करना (kam karnaa)

verb A verb phrase built from the adjective/adverb कम (kam, 'less') plus करना (karnaa, 'to do'), meaning 'to reduce' or 'to lessen' something. It has one core sense with everyday uses ranging from turning down a stove flame to cutting prices or easing pain.
Sense 1 : to reduce, lessen, turn down
verb, transitive
Synonyms: घटाना (ghataanaa)
Frequency: high
Cultural Note: This phrase is a workhorse in daily Delhi life -- haggling at a market stall ("थोड़ा कम कर दो" (thodaa kam kar do, 'lower it a bit')), telling someone to turn down the TV, or a doctor advising you to cut down on salt. Its intransitive partner is कम होना (kam honaa, 'to decrease [on its own]'), which describes something reducing by itself rather than being reduced by an agent -- a classic Hindi pattern of pairing a करना (karnaa) causative-style verb with a होना (honaa) counterpart.
Common Mistakes: 1) Learners often reach for घटाना (ghataanaa) as the only option, but कम करना (kam karnaa) is the everyday spoken choice in contexts like आवाज़ कम करो (aavaaz kam karo, 'turn the volume down') or गैस कम करो (gais kam karo, 'lower the flame') -- घटाना (ghataanaa) sounds slightly more formal or written. 2) As a transitive verb, this takes ने (ne) marking on the subject in the perfective: उसने कीमत कम की (usne kiimat kam kii, 'he/she reduced the price') -- note that करना (karnaa) agrees with कीमत (kiimat, feminine), not with कम (kam).
Sample Sentences:
भैया, दाम थोड़ा कम कर दो। Brother, lower the price a bit.
(bhaiyaa, daam thodaa kam kar do।)
Register: Casual -- Mood: Imperative -- Voice: Active
थोड़ी आवाज़ कम कर दो, बच्चा सो रहा है। Turn down the volume a little, the child is sleeping.
(thodii aavaaz kam kar do, bachchaa so rahaa hai।)
Register: Casual -- Mood: Imperative -- Voice: Active
डॉक्टर ने मुझे नमक कम करने की सलाह दी। The doctor advised me to reduce my salt intake.
(doktar ne mujhe namak kam karne kii salaah dii।)
Register: Neutral -- Mood: Indicative -- Aspect: Perfective -- Tense: Past -- Voice: Active
सरकार पेट्रोल की कीमतें कम करती रहती है जब चुनाव नज़दीक होते हैं। The government keeps reducing petrol prices whenever elections are near.
(sarkaar petrol kii kiimten kam kartii rahtii hai jab chunaav nazdiik hote hain।)
Register: Neutral -- Mood: Indicative -- Aspect: Habitual -- Tense: Present -- Voice: Active
कंपनी अगले महीने से स्टाफ की संख्या कम करेगी। The company will reduce the staff count starting next month.
(kampnii agle mahiine se staaph kii sankhyaa kam karegii।)
Register: Formal -- Mood: Indicative -- Tense: Future -- Voice: Active
अगर वह अपना खर्चा कम करता तो इतना कर्ज़ न होता। If he had reduced his spending, there wouldn't be so much debt.
(agar vah apnaa kharchaa kam kartaa to itnaa karz n hotaa।)
Register: Neutral -- Mood: Counterfactual -- Aspect: Habitual -- Voice: Active
मैं चाहता हूँ कि तुम अपनी स्क्रीन टाइम कम करो। I want you to reduce your screen time.
(main chaahtaa hoon ki tum apnii skriin taaim kam karo।)
Register: Casual -- Mood: Subjunctive -- Voice: Active
इस योजना के तहत प्रदूषण को काफी हद तक कम किया गया है। Under this scheme, pollution has been reduced to a great extent.
(is yojnaa ke tahat pradooshan ko kaaphii had tak kam kiyaa gayaa hai।)
Register: Formal -- Mood: Indicative -- Aspect: Perfective -- Tense: Present -- Voice: Passive
उसने गुस्से में स्पीकर की आवाज़ एकदम कम कर दी। In anger, he suddenly turned the speaker's volume right down.
(usne gusse men spiikar kii aavaaz ekdam kam kar dii।)
Register: Casual -- Mood: Indicative -- Aspect: Perfective -- Tense: Past -- Voice: Active
कृपया गति कम करें, आगे स्कूल है। Please reduce your speed, there's a school ahead.
(kripyaa gati kam karen, aage skool hai।)
Register: Formal -- Mood: Imperative -- Voice: Active
शायद वह अपनी फीस थोड़ी कम कर दे। Maybe he'll reduce his fee a little.
(shaayad vah apnii phiis thodii kam kar de।)
Register: Casual -- Mood: Subjunctive -- Voice: Active
Morphology
Verb (irregular)
infinitive: कम करना (kam karnaa)
infinitive oblique: कम करने (kam karne)
habitual/simple (sg.m): कम करता (kam kartaa)
habitual/simple (pl.m): कम करते (kam karte)
habitual/simple (sg.f): कम करती (kam kartii)
habitual/simple (pl.f): कम करतीं (kam kartiin)
continuous (sg.m): कम कर रहा (kam kar rahaa)
continuous (pl.m): कम कर रहे (kam kar rahe)
continuous (sg.f): कम कर रही (kam kar rahii)
continuous (pl.f): कम कर रहीं (kam kar rahiin)
perfective (sg.m): कम किया (kam kiyaa)
perfective (pl.m): कम किए (kam kie)
perfective (sg.f): कम की (kam kii)
perfective (pl.f): कम कीं (kam kiin)
imperative (informal): कम कर (kam kar)
imperative (neutral): कम करो (kam karo)
imperative (formal): कम कीजिए (kam kiijie)
future (1sg.m): कम करूँगा (kam karoongaa)
future (1sg.f): कम करूँगी (kam karoongii)
future (1pl.m): कम करेंगे (kam karenge)
future (1pl.f): कम करेंगी (kam karengii)
future (2sg.m): कम करेगा (kam karegaa)
future (2sg.f): कम करेगी (kam karegii)
future (2pl.m): कम करोगे (kam karoge)
future (2pl.f): कम करोगी (kam karogii)
future (3sg.m): कम करेगा (kam karegaa)
future (3sg.f): कम करेगी (kam karegii)
future (3pl.m): कम करेंगे (kam karenge)
future (3pl.f): कम करेंगी (kam karengii)
subjunctive (1sg): कम करूँ (kam karoon)
subjunctive (1pl): कम करें (kam karen)
subjunctive (2sg): कम करे (kam kare)
subjunctive (2pl): कम करो (kam karo)
subjunctive (3sg): कम करे (kam kare)
subjunctive (3pl): कम करें (kam karen)