eversince后面的时态
ever since后面的时态是现在完成时。
everadv. 曾经; (用于否定句和疑问句，或与if连用的句子)在任何时候; (进行比较时用以加强语气)以往任何时候; 不断地; 总是; 始终。
sinceprep. 自从; 自…以后; 从…以来; (表示气愤)何曾，什么时候。
He\'s borne me a grudge ever since that day.
I was bitten by a dog once and I\'ve been afraid of them ever since.
我曾被狗咬过，自那以后就一直害怕狗。
He\'s been there ever since you left!
自从你离开后他就一直在那里！
Technically, the two sides have been in a state of war ever since 1949.
准确来说，双方自1949年起就一直处于交战状态。
I\'ve been dieting ever since the birth of my fourth child
我生完第四个孩子后就一直在节食。