N4-G-027
Na adjective plain form＋かもしりません (Might be)
Core / Probability with Na-Adjectives
👀 Layer A: Visual Guide
📝 Quick Summary
Use this to express that someone or something might have a certain quality or state. For Na-adjectives in the present tense, you must drop the “da” from the plain form and connect the base word directly to “Kamoshiremasen”.
Structure (Present): [Na-Adj Base] + かもしれません。
Structure (Past): [Na-Adj Base] + だった かもしれません。
Example: この まちは しずか かもしれません (This town might be quiet).
🔗 Connected Grammar:
🔍 Layer B: Deepening
💡 Raya’s Hack
The “No Da” Trap
It is very tempting to say “Suki-da kamoshiremasen” because you know the plain form is “Suki-da.” But in Japanese, “da” and “Kamoshiremasen” clash!
Think of it like this: “Kamoshiremasen” already implies a state of being, so the extra “da” is redundant. This rule also applies to Nouns!
– ⭕ あめ かもしれません (Might be rain).
– ❌ あめだ かもしれません。
🚧 Joy’s Mistake
Scene: Joy is guessing why a restaurant is so popular.
Joy: 「この みせは べんりな かもしれません。」
(Kono mise wa benri-na kamoshiremasen.)
❌ Don’t keep the “NA”!
Why?
“Na” is only used when the adjective is followed by a Noun (e.g., Benri-na mise). “Kamoshiremasen” is a grammar ending, not a noun. When you aren’t describing a specific noun right after the adjective, you drop the “na”.
Correct: 「べんり かもしれません。」
🔥 Layer C: Practice Loop
Master the Na-adjective guesses! (Hiragana and English only)
Level 1: Conjugation
Q1. Might be quiet (しずか)
Q2. Might be free/unbusy (ひま)
Q3. Might not be healthy/energetic (げんき – Negative)
Q4. Might have been famous (ゆうめい – Past)
Q5. Might be convenient (べんり)
Level 2: Full Sentences
Q6. That teacher might be kind. (しんせつ)
Q7. The library might be quiet. (としょかん)
Q8. He might be free tomorrow. (あした / ひま)
Q9. This car might be convenient. (くるま)
Q10. That person might not be healthy/energetic. (げんきじゃない)
