Using Can’t Have V3 and Couldn’t Have V3
- 1.Both of them are similar in meaning impossibility.
- Couldn’tHaveV3 seems more formal than Can’t Have V3.
- In writing, CouldNot HaveV3 is preferred generally.
- When Couldn’tHave V3 is used as a past conditional, Can’t Have V3 can not be substituted in any way.
