以下是一些用英語表達愛情的美句：
1. "Love is like a butterfly, gentle and fleeting." (愛情就像蝴蝶，溫柔而短暫。)
2. "You are my sunshine, the happiness in my heart." (你是我的陽光，是我心中的快樂。)
3. "When I think of you, my heart skips a beat." (每當我思念你的時候，我的心跳就會加速。)
4. "I love you not only for what you are, but also for what I am when I am with you." (我愛你不僅因為你是什麼樣的人，還因為與你在一起時我是什麼樣的人。)
5. "A true friend is the one who holds your hand when you fall and leans over to pat you on the back when you get up." (真正的朋友是在你跌倒時握住你的手，在你重新站起來時拍拍你的背的人。)
6. "Love is like a flower that grows in silence, but blooms with passion." (愛情就像一朵在沉默中生長，卻以激情綻放的花朵。)
7. "I may not be perfect, but I am perfect for you." (我可能不完美，但我完美地適合你。)
8. "Love is like a river, it flows when it wants to." (愛情就像一條河流，它想流的時候就流。)
希望這些句子可以幫到你！