she is fond of collecting stamps请问这句是什么时态?collecting为什么要用现在进

she is fond of collecting stamps请问这句是什么时态?collecting为什么要用现在进 She is fond of collecting stamps. He is very fond of collecting stamps Collecting stamps is my hobby 此句为何要用Collecting 为什么是is my 用 stamps she is in interested collecting 连词成句 I like collecting stamps .ing是什么时态 She likes collecting stamps (否定句) Collecting stamps is very interesting同义句 her hobby is collecting stamps,这句话中collecting是什么词性.高手解答.急 My hobby is collecting stamps.为什么要用ing的形式啊? Collecting stamps is really educational .这句话是现在分词短语作主语吗?请分析句 My hobby is collecting stamps.