look forward to的意思是“期待；期望；期盼”，其中的to是介詞，其後接名詞、代詞或者動名詞形式作賓語，不能接動詞原形。例如：
We are looking forward to your arrival.我們正期盼著你的到來。
I"m looking forward to receiving your letter.我期待著收到你的來信。
like to do與like doing是意思相近的，doing指一件事情，do指這個行為。例如：
I like eating hamburgers.和I like to eat hamburgers.
eating強調這件事情，to eat強調這個動作。
擴充套件資料
接-ing或to do形式作賓語意思相同的動詞有：
1、like doing sth / like to do sth 喜歡做某事
Not all people like working / to work but everyone likes to play. 不是所有人都喜歡工作，但每個人都喜歡玩。
2、love doing sth / love to do sth 喜歡做某事
People around the world love laughing / to laugh. 全世界的人都喜歡笑。
3、hate doing sth / hate to do sth 憎恨做某事
I hate doing / to do the cleaning around the house. 我不喜歡打掃房子。 2008 陝西
4、prefer doing sth / prefer to do sth 寧願做某事
I prefer shutting / to shut myself in and listening to music all day on Sunday. 週日我喜歡一整天把自己關在屋裡聽音樂。
5、begin doing sth / begin to do sth 開始做某事
When did you begin to learn / learning French? 你是什麼時候開始學法語的？
6、start doing sth / start to do sth 開始做某事
Henry Ford did not start building / to build his first car until 1896. 直到1896年，亨利·福特才開始製造他的第一輛轎車。 2011 遼寧
7、continue doing sth / continue to do sth 繼續做某事
Though wounded, they continued fighting / to fight. 雖然負了傷，但他們仍然堅持戰鬥。
8、can’t bear doing sth / can’t bear to do sth 不能忍受做某事
Shaw, an animal lover, said he couldn’t bear parting / to part with his dog. 肖是一個喜愛動物的人，他說他捨不得與自己的愛犬分離。 2010 天津改
9、bother doing sth / bother to do sth 麻煩做某事
He didn’t even bother letting / to let me know he was coming. 他甚至都沒通知我他要來。
10、intend doing sth / intend to do sth 想要做某事
He intends studying / to study abroad next year. 他打算明年去國外留學。
look forward to的意思是“期待；期望；期盼”，其中的to是介詞，其後接名詞、代詞或者動名詞形式作賓語，不能接動詞原形。例如：
We are looking forward to your arrival.我們正期盼著你的到來。
I"m looking forward to receiving your letter.我期待著收到你的來信。
like to do與like doing是意思相近的，doing指一件事情，do指這個行為。例如：
I like eating hamburgers.和I like to eat hamburgers.
eating強調這件事情，to eat強調這個動作。
擴充套件資料
接-ing或to do形式作賓語意思相同的動詞有：
1、like doing sth / like to do sth 喜歡做某事
Not all people like working / to work but everyone likes to play. 不是所有人都喜歡工作，但每個人都喜歡玩。
2、love doing sth / love to do sth 喜歡做某事
People around the world love laughing / to laugh. 全世界的人都喜歡笑。
3、hate doing sth / hate to do sth 憎恨做某事
I hate doing / to do the cleaning around the house. 我不喜歡打掃房子。 2008 陝西
4、prefer doing sth / prefer to do sth 寧願做某事
I prefer shutting / to shut myself in and listening to music all day on Sunday. 週日我喜歡一整天把自己關在屋裡聽音樂。
5、begin doing sth / begin to do sth 開始做某事
When did you begin to learn / learning French? 你是什麼時候開始學法語的？
6、start doing sth / start to do sth 開始做某事
Henry Ford did not start building / to build his first car until 1896. 直到1896年，亨利·福特才開始製造他的第一輛轎車。 2011 遼寧
7、continue doing sth / continue to do sth 繼續做某事
Though wounded, they continued fighting / to fight. 雖然負了傷，但他們仍然堅持戰鬥。
8、can’t bear doing sth / can’t bear to do sth 不能忍受做某事
Shaw, an animal lover, said he couldn’t bear parting / to part with his dog. 肖是一個喜愛動物的人，他說他捨不得與自己的愛犬分離。 2010 天津改
9、bother doing sth / bother to do sth 麻煩做某事
He didn’t even bother letting / to let me know he was coming. 他甚至都沒通知我他要來。
10、intend doing sth / intend to do sth 想要做某事
He intends studying / to study abroad next year. 他打算明年去國外留學。