behxrad
Member
- Joined
- Jun 10, 2014
- Member Type
- Student or Learner
- Native Language
- Persian
- Home Country
- Iran
- Current Location
- Iran
Hi, first I have to thank all of those users who answered my previous questions.
I have some problems in understanding the right meaning of could have and I don't know where exactly to use Could have. I know some examples like,
"I was so tired that I could have slept a whole day".
In this example, I know, it means "I was able to sleep but I didn't".
In another example
"She hasn't come to the party yet, she couldn't have got my message".
In this one, it means "it is possible that she didn't get my message".
I almost have a few problems in using expressions like those in the previous examples and that's okay. But my real problems are when the statements like these in below are expressed and I do not understand which type of could usages they are, whether imagination or something else.
"How could you not have noticed that he had arrested me?".
"As you can see, the tornado almost destroyed everywhere. How could he possibly have survived?".
I don't understand the author's purposes of those questions? why didn't he use past? Please explain what's difference between these examples and those on the top.
I would be so grateful.
I have some problems in understanding the right meaning of could have and I don't know where exactly to use Could have. I know some examples like,
"I was so tired that I could have slept a whole day".
In this example, I know, it means "I was able to sleep but I didn't".
In another example
"She hasn't come to the party yet, she couldn't have got my message".
In this one, it means "it is possible that she didn't get my message".
I almost have a few problems in using expressions like those in the previous examples and that's okay. But my real problems are when the statements like these in below are expressed and I do not understand which type of could usages they are, whether imagination or something else.
"How could you not have noticed that he had arrested me?".
"As you can see, the tornado almost destroyed everywhere. How could he possibly have survived?".
I don't understand the author's purposes of those questions? why didn't he use past? Please explain what's difference between these examples and those on the top.
I would be so grateful.