1. I mind my p's and q's whenever I see him.
   每當(dāng)我見(jiàn)到他我都謹(jǐn)慎行事。
2. I'd like to see you whenever it's convenient.
   在你方便的時(shí)候我想來(lái)看看你。
3. Come whenever you like.
   你什么時(shí)候想來(lái)就來(lái)。

when.ev.er

adv.（副詞）
At whatever time.
當(dāng)…時(shí)候
Also when ever When.See Usage Note at whatever
也作 when ever 無(wú)論何時(shí)參見(jiàn) whatever
conj.（連接詞）
At whatever time that:
無(wú)論什么時(shí)候：當(dāng)…時(shí)候：
例句：
We can leave whenever you`re ready.
你什么時(shí)候準(zhǔn)備好我們就可以動(dòng)身

Every time that:
每當(dāng)：
例句：
The child smiles whenever the puppy appears.
每當(dāng)那小狗一露面這孩子便面帶笑容