🍔 The doing pattern

Reverse everything after the subject

English: Jack orders a hamburger. Subject, verb, object.

Japanese keeps the subject first, then reverses the rest: Jack, a hamburger, orders. Subject, object, verb. The verb always comes last. Wait for it.

Two sounds glue the parts together. は (said "wa") comes right after the subject. を (said "o") comes right after the object.

The します converter

Japanese has a converter that turns foreign words into verbs: put します after the word. Japanese people already know order, cancel, email, copy, delete from six years of English class, so 注文します (order + します) is a real verb everyone says at McDonald's.

On the cards, a verb of this kind is two pieces: the word, then します. That is the whole doing pattern. With it you can already say dozens of things.

Drop what is obvious

If it is clear you are talking about yourself, drop 私は. At a counter, これを注文します ("I'll order this") is complete and natural. Japanese leaves out anything the listener can guess.