I want to ask about اسلوب الشرط. Is there any rule for each ادوات الشرط what verb ( مضارع او ماضي) to be used? For example, can we use مضارع for both الشرط والجواب for لو ? Or can we use ماضي، or mix? Any differences in the meanings لو ذهبتتَ، ذهبتُ،او لو تذهب،ذهبت او لو ذهبت،اذهب