Hello, Mr Pete—and welcome to English Forums. Mr Pete I can't explain why one is false but the other one is true when they are both present perfect and use the same structure. You have to look at the semantics, the real meaning of what has happened, Pete, not just the verb forms.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
Mr PeteI can't explain why one is false but the other one is true when they are both present perfect and use the same structure.You have to look at the semantics, the real meaning of what has happened, Pete, not just the verb forms. It simply depends on the meanings of the two verbs as we use them:
Mr PeteWhy does the first one indicate that Grandma is no longer at the bank but the second indicate that Rob is still at the park?They actually don't, except that those interpretations are the most logical ones given the actions expressed in them.