it is my frist time to do sth / or doing sth/or do sth?

it is my frist time to do sth / or doing sth/or do sth? give up to do sth or give up doing sth? it is time to do sth.It is time for doing sth.一样么 my hobby is to do sth /doing sth sb.spends some time doing sth.it is+adj.+for sb.to do sth.it it is time to do sth过去式 let sb.do sth.or let sb.to do sth waste time to do sth还是waste time doing sth? make sb to do sth.or make sb doing sth.make sb do sth 三者有什么区 是it is time to do sth还是 it is the time to do sth be used to do sth.or be used to doing sth. 用It's time to do sth 和It's time for doing sth 造句