YOU SAID:
He had eyes on you constantly.
INTO JAPANESE
彼は常にあなたを見ていました。
BACK INTO ENGLISH
He was always watching you.
INTO JAPANESE
彼はいつもあなたを見ていました。
BACK INTO ENGLISH
He was always looking at you.
INTO JAPANESE
彼はいつも君を見ている。
BACK INTO ENGLISH
He's always looking at you. [M]
INTO JAPANESE
彼はいつも君を見ている。
BACK INTO ENGLISH
He's always looking at you. [M]
That didn't even make that much sense in English.