I thought about using has expired (present perfect tense) since it's possible that the passport expired some time in the past and until now it is still expired. If this is correct, since it's not past-unreal because it uses present perfect tense, what will it be called? There is also a simple past version:
The present perfect continuous (also known as the present perfect progressive) is have/has + been + the continuous tense of a verb. (Continuous tense is verb ~ing.) This verb tense has a connection to events happening now. “I’ve been studying all night.”. Enjoy this grammar resource and be sure to download the free 17-page Present Perfect
The past perfect continuous is made from had been and the -ing form of a verb: I had been working there for a year. They had been painting the bedroom. The past perfect is used in the same way as the present perfect, but it refers to a time in the past, not the present. We use the past perfect:
(In the above conversation-present perfect continuous talks at tea time, look carefully at the letters in bold in present perfect continuous) Present Perfect Continuous Tense . It is used for an action which began at some time in the recent past and is still continuing; Example: The guests have been staying here for two days.
(This is in the future tense) We have been married for 16 years. (This is in the present perfect tense) SINCE. SINCE is used with a starting point or a time or date. It refers to something that started in the past and continues until now. SINCE is mostly used with the present perfect and perfect progressive tense. Here are some example sentences:.