I was studying the te-form in depth and found out that it can be used as a starting point (起点) and a Japanese friend of mine told me that it is the same as ～てから; just an omission of から. It seems to be common to be used as a set phrase like
something + して + time + になる, like the exemple sentence in the title, or the one inside the link (
結婚して十年になる). When I asked to my friend why なる instead of なった or なっている, they just translated to "we have been married for 10 years".
Can the "present tense" of Japanese verbs be used the same way as the present perfect continuous in English? It's not very common to find other information about the usage of the present tense and present perfect continuous in Japanese (if you know it, even written in Japanese, let me know), only that it can represent habits or the future tense. It doesn't seem to make sense to be in the future tense, and habits don't seem to work well here too. That's why I thought it could be
I found that stative verbs like ある and いる (and that also includes なる, probably) can be used in the present tense to well... indicate a state.
Then, what would be the difference between なる and なっている?