You can say what is happening and what happened. This week you learn to reach past that — what you will do, what you can do, what you are allowed to do, what you have to do.
Six endings. They look like six things to memorise. They are not: they are two rules you already know, arriving at six places.
| Rule you already have | Endings built on it |
|---|---|
| Final consonant or not | -(으)ㄹ 거예요 · -(으)ㄹ 수 있어요 · -(으)면 · -(으)세요 · -(으)ㄹ까요 |
| Bright vowel or not | -아도 돼요 / -어도 돼요 · -아야 돼요 / -어야 돼요 |