请大家帮分析,when、that是什么从句?and、became、made各在里面是什么意思/成分?整句怎么分析?hebecamemortallyillafewmonthsbeforewehadplannedtogoand,whenheknewthathewasdying,hemademepromisetogoonmy

Question

请大家帮分析,when、that是什么从句?and 、became、made各在里面是什么意思/成分?整句怎么分析?
he became mortally ill a few months before we had planned to go and ,when he knew that he was dying,he made me promise to go on my own

Answer 1

when 引导时间状语从句：当……时
(that-) 引导宾语从句的连接词（无意义的连词,可省略）
became = fell/ was/ got...患病/得病
made sb do sth 使/让……做