it is with both regret and anticipation that i submit this letter of resignation, to resign from the position of 职位 effective february xx, XX. i have decided to take

　　this time to evaluate my current goals and investigate new opportunities. it has been my genuine pleasure to work for edward keller and 公司名 group during these last xx years. thank you for allowing me to （公司名）.

　　yours sincerely

　　以上只是英文辞职信的一个大体结构，具体内容还应根据自己的个人情况而定，希望上面的内容能对您有所帮助。