Question 1

How do present and past negative forms of to be differ?

Accepted Answer

Present negative forms are "am not", "isn't", and "aren't". Use them for now, today, habits, and current facts: "I am not ready", "She isn't here", "They aren't open." Past negative forms are "wasn't" and "weren't". Use them for finished past times: "I wasn't well yesterday", "They weren't at school last Monday." First decide the time. Then match the subject. One person or thing usually takes "isn't" in the present and "wasn't" in the past, which keeps the pattern clear for learners.

Question 2

When do I use was not and were not?

Accepted Answer

Use "was not" or "wasn't" with "I", "he", "she", "it", and one person or thing: "I wasn't at home", "The train wasn't on time." Use "were not" or "weren't" with "you", "we", "they", and more than one person or thing: "You weren't late", "The students weren't quiet." The short forms are common in speech. The full forms are useful when you want to be clear or careful. The choice depends on the subject, not on the word after the gap.

Question 3

Can this morning use was not or is not?

Accepted Answer

"This morning" can point to the past or to the present, depending on when you speak and what you mean. At midday, "You weren't at the meeting this morning" clearly means earlier today. During the morning, "The shop isn't open this morning" can describe the current situation. Read the rest of the sentence for clues such as "when you called", "right now", or "already finished". If the event is finished, choose "wasn't" or "weren't". If it is true now, choose "isn't" or "aren't".

Verb To Be - Negative Forms Advanced Exercises

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