Phrase pattern
Who → จะ → does what → to whom
จะ marks the future and goes right before the verb, like will
who+จะ+does what+whom or what
Several rules work together in this pattern: who → does what → what; a marker sets the time: จะ before the verb, แล้ว at the end.
Mum will read a letter
Uncle will see the son
The child will use an umbrella
Practice with this pattern changes the words each time. They come from the words you're learning.
Kai says
The same Thai letter can look different in a book and on a sign. Looped and loopless fonts use different shapes, and the app's font setting lets you practise both.