Tom buraya gelmiş olabilir.
- Tom may have been here.
Tom dün gece partiye gelmiş olabilir ama onu orada görmedim.
- Tom may have been at the party last night, but I didn't see him there.
... we've seen today have been enabled by laws, some of them ...
... very, very few African-American students, in some, there might have been no African-American ...