6. Using "Can" and "Could" in Everyday Situations

In English, we use the words "can" and "could" to talk about what we can do, what might happen, and when we can get permission for something. Knowing how to use these words well is important for good communication. Let’s break it down with some simple examples.

1. Ability

• Can: This word shows what you can do right now.
  • Example: I can swim.
• Could: This word talks about what you could do in the past or in a made-up situation.
  • Example: When I was a child, I could run fast.

2. Possibility

• Can: This word tells you about a general possibility.
  • Example: It can be very cold in winter.
• Could: This word suggests something might happen in the future.
  • Example: It could rain tomorrow.

3. Permission

• Can: This word gives informal permission.
  • Example: You can borrow my book.
• Could: This word is used for polite requests or asking for permission.
  • Example: Could I go to the bathroom, please?

Key Grammar Points

1. Matching Subjects and Verbs:

   • Make sure "can" or "could" fits with the subject.
   • Example: She can dance. (Not: She can dances.)

2. Simple Present and Present Continuous:

   • Use the simple present for regular actions (like I can play chess.).
   • Use the present continuous when something is happening now (like I am playing chess now.).

3. Asking Questions and Making Negatives:

   • To ask a question, say: Can you help me?
   • To make it negative, say: I cannot (can’t) do that.

4. Using Possessive Forms:

   • Use possessive words correctly: This is my pencil. (not: This is pencil my.)

Final Thoughts

Practicing "can" and "could" in everyday conversations will help you get better at English. Try making your own sentences with these examples, and remember to watch how your subjects and verbs match up!