Step 8: the low class
What you will be able to do
Read the common low-class consonants, and survive the trap: the same marks give DIFFERENT tones than they did on middle and high class.
The low class is the biggest group, and it contains the trap the whole system was building to. The rules: Live and unmarked: MID. มา (maa, to come), นา (naa, rice field), ลิง (ling, monkey). Dead with a SHORT vowel: HIGH. คิด (khít, to think), รัก (rák, to love). Dead with a LONG vowel: FALLING. มาก (mâak, very), ลาบ (lâap, the Isaan salad you have already eaten). Now the trap. On a low-class consonant, ไม้เอก gives FALLING, not low: น่า (nâa). And ไม้โท gives HIGH, not falling: น้า (náa, your mother's younger sibling). The marks have shifted one tone step compared to what steps 6 and 7 taught you. Do not try to memorise that as an exception. See the design instead: middle class covers mid-low-falling-high-rising with its marks, high class covers rising-low-falling, low class covers mid-falling-high. Between the three classes, every tone is reachable, and THAT is why Thai needs three classes for the same sounds. The payoff triple, at last: นา น่า น้า, three tones, three meanings, one letter. And with ม: มา (come) and ม้า (horse, mái thoo on low class = high). The listening drill has been playing you these; now you can READ them.
- มmaw máahorselow class
- นnaw nǔumouselow class
- งngaw nguusnakelow class
- คkhaw khwaaibuffalolow class
- ทthaw thá-hǎansoldierlow class
- รraw reuaboatlow class
- ลlaw lingmonkeylow class
- วwaw wǎenringlow class
- นาnaarice field: live, unmarkedtone: mid
- น่าnâasame letter + mái èektone: falling
- น้าnáasame letter + mái thootone: high
- คิดkhítthink: dead, short voweltone: high
Common mistake
The mark-shift is where every self-taught reader crashes. Drill one pair until it is reflex: ป่า (bpàa, middle + èek = LOW) versus น่า (nâa, low + èek = FALLING). Same mark, different class, different tone. Class first, mark second, always.