我向你保证用英语

I promise/You have my wordI swear 的意思是“我发誓”，用在这里是不合适的。

我保证的英文翻译是I Promise 。词汇分析释义：我承诺; 我答应你拓展资料1，I promise you to leave. 我答应你（我）走。 2，No, I promise you. 不，我答应你。 3，If you have patience with me I promise I will not give up. 如果你有点耐心与我，我保证我将不放弃。 4，I'll wait for you, I promise you, I will. 我会等着你的，我向你保证！ 5，I promise I'll be loyal to you forever. 我承诺我将对你永远忠诚。

as.sured; as.sur.ing; as.sures;To inform positively, as to remove doubt: 向…保证告知确实如此，以解除怀疑：assured us that the train would be on time.向我们保证火车将会准时到达To cause to feel sure:使确信：assured her of his devotion.使她确信他的挚爱To give confidence to; reassure.给予信心；使放心

You have my wordI assure you that==

你的英语句式是错的 应该是 l want to say"l love you " 翻译是对的 第二句是 l want to say "l promise that l won't leave you forever "

这句话是口语式的 英文习惯把promise放在后面 It/This will never happen again ,I promise 或者表达强烈一点： This will never ,ever happen again!I promise. 你要不习惯,放在前面也可以 I promise you that the matter will never happen again.