发现某人正在做 是find sb doing 强调动作正在发生
发现某人做某事 是 find sb do 强调的是做的整个过程
请区分开来
例如
i find him drawing in the house
i finded him draw in the house
发现某人正在做某事: find sb doing sth.
如: The boss found him stealing some food in the kitchen .
老板发现他正在厨房偷食品.
find sb doing sth固定的
find sb doing sth