过去分词后面怎么又是带过去分词从句
问题描述：
过去分词后面怎么又是带过去分词从句
Redistribution and use in source and binary forms,with or without
modification,are permitted provided that the following conditions are met:
2楼的(be permitted done 结构)，请不要乱说，简直是误人子弟！强烈鄙视你
答
兄弟,主语是Redistribution and use in source and binary forms,谓语是are,宾语是permitted,后面的provided that 是状语从句的开头连接语,相当于only if.