Learn Arabic (Modern Standard): حتى لو ذرفت دمعة، سأواسيك. - Even if you shed a tear, I will comfort you.

After the conditional particle لو (if / even if), Arabic almost always uses the past tense, even if the meaning refers to the present or future. This is somewhat similar to English hypotheticals (e.g., "even if you cried tomorrow"). Because of لو, the past tense verb ذرفت sets up a hypothetical condition rather than an actual past event.

What is the root and form of the main verb inside سأواسيك?

It comes from the root أ س و, specifically the Form III verb آسى (to comfort or console). Form III often indicates an action directed toward or shared with another person. The word breaks down into three parts: the future prefix سـ (will), the first-person present verb أواسي (I comfort), and the attached pronoun object ـك (you).

Why is the word for "tear" written as دمعة instead of just دمع?

دمع is a collective noun referring to "tears" as a general substance or plural concept. By adding the taa marbuta (ـة), you create an "instance noun" (اسم المرة). Therefore, دمعة specifically means one single tear, matching the "a tear" in the English translation.

Sentences starting with لو often have a result clause that begins with لـ (la). Why isn't it used here?