Now 'gone' is the one to use when it's an unfinished action that started in the past and affects the present moment.

而谈论始于的、未完成的并影响现在的动作时，用“gone”。

Now, this is especially important when we are talking about unfinished time, from a time in the past until now.

现在，当我们谈论从某个时直到现在的未完成时时，这一点尤其重要。

We can use the present perfect and the present perfect continuous to talk about actions, unfinished actions that started in the past, and are still true now.

我们可以用现在完成时和现在完成进行时谈论动作，从始的未完成的但现在仍然进行的动作。

The present perfect is used here because the action, visiting Paris, happened at some point in the past, and it is still relevant to the present.

此处使用现在完成时，是因为“参观巴黎” 这一行为发生在的某个时刻，且至今仍与现在相关。 虽然具体参观时未明确指出， 但重点在于截至目前为止的体验。

So these are three common phrases that you can use with the present perfect when you are talking about unfinished time, again, from the past until now.

所以这些是三个常用的短语，你可以用它们在谈论从到现在为止的未完成时时使用现在完成时。