I will always be behind you. 这里不能少了动词be I'm always behind you. 这两个时态都可以
我一直在你身后. I am always behind you. 希望可以帮到你 望采纳
I will always back you up by your side.
I'm always right here behind you,waiting for a swell
英语是：I'll stand by you all the time. 句子解释： stand by 英[stænd bai] 美[stænd baɪ] [词典] 支持; 准备行动; 信守诺言; 站在旁边; [例句]British and American warships are standing by to evacuate their citizens if...
Wherever you are , I will be alway behind you.
“你是那么遥不可及，我永远只能在你的身后" “you are that remote may not and, I forever can only in you after death” 或 "You are so far away, I'll only be behind you" 或 "You are so unreachable, I never can behind you."
I am always behind you, if you are willing to look back
Brother, I will always accompany you silently behind you（来自金山词霸在线）
After turning around, you will find that I have been guarding behind you silently.