Difference Between Can and Could in Hindi

S.N	CAN	COULD
1.	Can का प्रयोग Present Indefinite Tense में किया जाता है।	Could का प्रयोग Past Indefinite Tense में किया जाता है।
2.	Can का प्रयोग ‘क्षमता’ (Ability), ‘योग्यता’ (Eligibility), अनुमति माँगना (Permission), अनुमति देना (To allow), सम्भावना (Possibility) आदि का भाव प्रकट हो तब Can का प्रयोग किया जाता है।	Could का प्रयोग भी ‘क्षमता’ (Ability), ‘योग्यता’ (Eligibility), अनुमति माँगना (Permission), अनुमति देना (To allow), सम्भावना (Possibility) आदि का भाव प्रकट हो तब का Could प्रयोग किया जाता है।
3.	मैं अंग्रेजी बोल सकता हूँI I can speak English. (This sentence talking about in Present Time)	मैं कल रात आराम से सो सका। I could sleep comfortably last night. (This sentence talking about in Past Time)
4.	Can का अर्थ ‘सकना’	Could का अर्थ ‘सका’ है।
5.	Could का प्रयोग Present Tense में बिना निवेदन के लिए भी होता है।	Could, can की 2nd form है

“Can” and “Could” are both modal auxiliary verbs in English, जब Sentence के पढ़ने से ‘क्षमता’ (Ability), ‘योग्यता’ (Eligibility), अनुमति माँगना (Permission), अनुमति देना (To allow), सम्भावना (Possibility) आदि का भाव प्रकट हो तब इस प्रकार के वाक्यों में Can, Could का प्रयोग किया जाता है। However, they are used in different ways and have subtle differences in meaning and usage.

1. क्षमता’ (Ability):
   “Can” is used to express present time or general ability, indicating that someone has the skill or capability to do something in the present or on a regular basis. For example:
   1. I can speak English fluently.
   2. She can run fast.
   
   “Could” is used to express past or hypothetical ability, indicating that someone had the skill or capability to do something in the past, or in hypothetical or conditional situations.
   For example:
   1. When I was younger, I could climb trees.
   2. If you study hard, you could pass the exam.
   
   
2. अनुमति माँगना (Permission):
   “Can” is used to ask for or give permission in the present or future.
   
   For example:
   1. Can I borrow your pen?
   2. You can go to the party if you finish your homework.
   
   “Could” is used to ask for or give more polite or tentative permission, or to express hypothetical permission in the past or in hypothetical situations.
   
   For example:
   1. Could I please have a glass of water?
   2. He said I could use his car if I needed to.
   
   
3. सम्भावना (Possibility):
   
   Examples:
   It can rain heavily in April.
   This medicine can cause drowsiness.
   It could rain heavily yesterday.
   If it’s sunny tomorrow, we could go to the beach.