如果的如果只是如果曾经的曾经只剩曾经
[rú guŏ de rú guŏ zhĭ shì rú guŏ céng jīng de céng jīng zhĭ shèng céng jīng]
This username suggests a sense of nostalgia and regret, implying that 'ifs' are now only memories, and what's left is acceptance or melancholy about the past.