5D Modals in the past 1 Complete the sentences with the phrases below.can't have could have might not have limust have should have shouldn't haveused my salnav. This map is reallyold and now I'm completely lost.2 Oh look that's lon's phone on the desk Heforgotten it3. My computer isn't working. I'm not sure why, butdownloaded some malwarewhen I dicked on that linksent this text message. He hasn't got a phonetried to update my phone software. I did it last night and now my phonedoesn't work at all.6 Youdeleted that document. Perhaps you saved it to a different folder.​

1. I must have used my old map. This map is really old and now I'm completely lost.
Explanation: The person is saying that it is highly likely that they used their old map because the current map is old and they are lost.

2. He could have forgotten his phone. Oh look, his phone is on the desk.
Explanation: The person is saying that it is possible that he forgot his phone because they see it on the desk.

3. I might have downloaded some malware when I clicked on that link. My computer isn't working.
Explanation: The person is suggesting that it is possible that they downloaded malware because their computer is not working and they clicked on a link.

4. He must not have sent this text message. He doesn't have a phone.
Explanation: The person is suggesting that it is likely that he didn't send the text message because he doesn't have a phone.

5. I shouldn't have tried to update my phone software. I did it last night and now my phone doesn't work at all.
Explanation: The person is saying that it was a mistake or a bad decision to update their phone software because now their phone is not working.

6. You shouldn't have deleted that document. Perhaps you saved it to a different folder.
Explanation: The person is saying that it was not a good decision to delete the document because maybe it was saved in a different folder.