널 사랑한다면, 영원히 사랑해요.
Please help me if you have time~

I want to say, "If I love you, I love you forever," or, "If I love you, it is for always."

Another option might be, "If I say I love you, it means I'll love you forever."

감사합니다 ♪

Question

널 사랑한다면, 영원히 사랑해요.
Please help me if you have time~

I want to say, "If I love you, I love you forever," or, "If I love you, it is for always."

Another option might be, "If I say I love you, it means I'll love you forever."

감사합니다 ♪

Answer

To make it sound natural, I would recommend:

"널 사랑해, 영원히." (I love you, forever.) or "당신을 사랑해요. 영원히" (formal, you can put the person's name with 씨 instead of 당신)
"널 영원히 사랑할거야." (I will love you forever.) or "당신을 영원히 사랑할거예요."
"널 사랑한다는 말은 널 영원히 사랑할 거라는 말이야." (My words I love you mean I will love you forever.) or "당신을 사랑한다는 말은, 당신을 향한 내 영원한 사랑을 담은 말이예요. (My eternal love for you is included in my words I love you.)

Hope it helps :-)