have sth to do with = I Got sth to do 有某事需要去做.
I got sth to deal with 我有事儿需要处理一下
2 = be involved in 与某事有关
He's involved in this arson = the arson has sth to do with him
他跟这件纵火案有关
目前能想到的就这两个 基本上也都差不多就这两个意思吧