Question

Questions 1) What is the difference in obligation between have to and must? 2) What is the difference between can and could? 3) What is the past form of should, must and might? 4) What is the future form of have to? 5) What modal means the same as “should” but is a little more formal? 6) Which modal verb is used for prohibition? 7) In the present tense, what type of verb follows a modal? 8) In the past tense, what type of verb follows a modal?

Answer 1

Ответ:

The difference between a trade surplus and a trade deficit we can see if we compare two things: how much a country exports and how much it imports. If a country exports more than it imports, it's a trade surplus, otherwise it's called a trade deficit.

Объяснение:

Answer 2

Sure, I'd be happy to help you with these questions:

1. Difference in obligation between "have to" and "must": Both "have to" and "must" express obligation, but "must" is generally considered stronger and more direct. "Must" implies a stronger sense of necessity and is often used when the speaker feels that something is absolutely required. "Have to" is slightly more flexible and can sometimes indicate a requirement imposed by external circumstances or rules.

2. Difference between "can" and "could": Both "can" and "could" indicate the ability or possibility to do something. "Can" is used in the present or future tense to express general ability or permission. "Could" is often used in the past tense to indicate past ability or possibility, or in a polite and formal context to make a request or offer.

3. Past form of "should," "must," and "might":

   • "should" remains the same in the past tense.
   • The past tense of "must" is "had to."
   • The past tense of "might" is also "might" (it doesn't change).

4. Future form of "have to": The future form of "have to" is "will have to." For example: "I will have to finish this assignment by tomorrow."

5. Modal that means the same as "should" but is more formal: The modal that means the same as "should" but is more formal is "ought to." For example: "You ought to apologize for your behavior."

6. Modal verb used for prohibition: The modal verb used for prohibition is "must not" or "mustn't." For example: "You must not enter this area without permission."

7. In the present tense, what type of verb follows a modal: In the present tense, a base verb (infinitive form without "to") follows a modal. For example: "She can swim."

8. In the past tense, what type of verb follows a modal: In the past tense, the base verb (infinitive form without "to") also follows a modal. For example: "He could run fast."

Feel free to ask if you have any more questions or need further clarification!