Typing Vietnamese

Your keyboard has no ở key
Being able to read ở without being able to type it means you can neither look a word up nor send a message.
the word pool
240
the most common of the 4398 syllables that take more than their own letters
Vietnamese is typed in ASCII, and the marks are built out of ordinary letters.
the marks on the letter
They belong to the vowel, not to the tone.
a a
→
â
the hat: you double the vowel
e e
→
ê
the hat
o o
→
ô
the hat
a w
→
ă
the breve: `w` after the vowel
o w
→
ơ
the horn
u w
→
ư
the horn
d d
→
đ
the bar
the tones
A single key, typed last.
s
→
á
rises sharply
f
→
à
low, falling
r
→
ả
dips, then comes back up
x
→
ã
broken in the middle
j
→
ạ
low and cut off
⚠️ These are two independent systems. The hat, the breve and the horn belong to the letter: ơ isn't o with a tone on it, it's a different vowel. The tone comes on top, afterwards. Typing or gives you ỏ — not ở.