Work language check: Upper-Intermediate 56% → 67%, Advanced 0% → 20%. (Zoom's AI level estimate is noise — ignore it.)
The single biggest note, repeated for months. The gap isn't knowledge, it's retrieval under time pressure — asked to use the odds are that, I could recite it and not build a sentence round it.
Fix: Pick two phrases from the activation list before class and force them into small talk.
tired knees, knee fatigue, SUP boards, sub boards.
Fix: When the word is missing, describe the thing — "the pain you get a day after training". That also gets the right word handed back to me.
Told big experience was wrong, I offered huge, then extremely big. The answer was extensive.
Fix: A rejected collocation needs a different adjective, not a bigger adverb.
"It's undoubtedly that you have to present" · "It's significant that we need to do work".
Fix: If it ends in -ly, it can't be the complement of it is.
"I'm kind of detective" · "real assets to your company". Not a knowledge gap — a fluency-cost gap, always the same slot.
Fix: a/an before a singular job title or role noun. Slow down one beat at the noun.
"super vital" · "It's absolutely essential that you have to watch".
Fix: When the adjective already carries the force, keep the rest of the clause plain.