SRL for [come across]: Sometimes , when tidying up works of poetry from years before , he would [come across] one that he had no recollection of ever writing .
ARG-0: he | ARG-M-MOD: would | ARG-1: one that he had no recollection of ever writing | ARG-M-TMP: Sometimes | ARG-M-TMP: when tidying up works of poetry from years before