grammar → 如果
TSUMUGU · TBCL 2 (est.) · 語法
如果 grammar point · tier 1 · 如果 — if, supposing (opens a hypothetical clause)
Opens a supposed clause: set a condition that has not happened, then say what would follow from it.

Hook inherited from 如果…就….

Opens a supposed clause
框 · Frame
如果 [supposed condition],[(就)consequence]
觸 · Trigger
You want to set up something that has not happened and say what would follow if it did.
序 · The move
1如果 + the supposed conditionhas this not happened yet — is it a supposition, not a stated cause?
2close the condition clause, then state the consequencedoes the second clause follow from the first?
3pick up the consequence with 就 (or 那 / 的話) where it reads naturallyis 就 inside the consequence clause, after its subject?
例 · Examples
1如果if, supposing下雨rains,我then不出門won't go out
If it rains, I won't go out.
界 · Boundary
因為
如果 supposes a condition that may or may not happen; 因為 states a cause that did happen. 如果下雨 = if it rains (unknown); 因為下雨 = because it rained (fact).
如果…就…
如果 alone opens the supposition; 就 is the optional pickup that fires the consequence. The frame names the whole condition→consequence pairing; this entry is the opening marker.
treating it as a fact: 因為明天有空,如果我們去 → 如果明天有空,我們就去
marker on the wrong clause: 下雨如果,我就不出門 → 如果下雨,我就不出門
就 before the subject: 如果有空,就我去 → 如果我有空,就去 / 我就去
English 'if' is one word at the clause front; learners stop there and drop the 就/那 pickup the consequence wants, or confuse 如果 with the factual 因為.