How do you use "become" or "have become" when this verb is so vague about time?
I'm not sure what tense to use here.
For example. I am friends with Allison. Now she and I become boyfriend girlfriend.
Can I use "have become" also? Because being boyfriend girlfriend started in the past up until now.
Can anyone explain to me how I can distinguish when to use "become" or "have/has become"?
Thanks in advance.