look forward to 与 looking forward to有什么区别

look forward to 与 looking forward to
1、两者翻译为汉语，意思相同，都是“盼望；期望”
2 look forward to ：这是动词短语，在句子中用作谓语。例如：
I look forward to your early reply.
盼早回复。

looking forward to 这是现在分词短语，在句子中作状语，或者与be 动词连用构成进行时态，作谓语。例如：
I【 am looking forward to】 your early reply.
与be 动词连用，构成现在进行时态，作谓语。
给人一种印象：I 正在等待，最好尽快回复。
He looked around,【looking forward to seeing a kind person coming over to help him out of trouble现在分词短语，作状语，表示伴随情况】.

祝你开心如意！

两者其实区别不大,你如果一定要鸡蛋里挑骨头,则有这样的解释：
1、从语气上来说,-ing 形式比较personal 和friendly,和 look forward to...相比较少为正式,如果你要表示礼貌而有亲和力则用looking forward to...,look forward to在非常正式严谨的business场合比较适用.
2、国外英语论坛上native speaker给的解释二：
“The difference is how the speaker perceives their own words:
an action seen as a whole/accomplished (I look forward...) or continuing (I am looking...).
一个动作的结束（look forward to...）和一个动作的持续（looking forward to...）
Unless very self-aware or possibly an English teacher,an ordinary native speaker will be unable to explain their choice between the two and so the difference between a mental impression (I look forward) and a mental activity (I'm looking forward).In such cases,attempting to explain these subtleties to your students may prove counterproductive,unless of course they're advanced enough to handle it.It is my policy,that until then they're perfectly fine knowing there is no real difference there.”

look forward to doing sth./be looking forward to doing sth. 意思相同，只不过进行式更强调“此时此刻”的心情。

与be动词有关，本身意思一样