Lojban Through Dialogues
Lesson 12. How Much? Is It Expensive?
Checking the menu prices at the café. meryru'u gives you exact prices; kargu and tolkargu cover expensive vs cheap. And pleji — to pay.
| Lojban | English |
|---|---|
xu kargu | Is it expensive? |
lo nanba cu meryru'u li pa ci | The bread costs 13 dollars. |
na kargu .i tolkargu | Not expensive — cheap! |
lo stasu cu meryru'u li re no | The soup costs 20 dollars. |
xu do se jdini | Do you have money? |
go'i .i .ai mi pleji | Yes — I'll pay. |
New words
| Lojban | Meaning |
|---|---|
| kargu | expensive |
| tolkargu | cheap (lit. opposite-of-expensive — tol- reverses any predicate) |
| meryru'u | x₁ costs x₂ US dollars — lo X cu meryru'u li N = "X costs N dollars" |
| jdini | money — se jdini = "to have money": xu do se jdini = "do you have money?" |
| pleji | x₁ pays x₂ to x₃ for x₄ — mi pleji = "I pay" |
Grammar note:
tol- is a systematic reversal prefix: kargu → tolkargu (expensive → cheap), sutra → tolsutra (fast → slow, though masno is the natural word). li before a number works the same as in clock times: meryru'u li re no = "costs 20 dollars." se jdini uses the familiar se swap: jdini = "x₁ is money for x₂," so se jdini = "x₁ has money x₂."
Practice dialogue
Linto discovers the price of soup.
| Lojban | English |
|---|---|
xu lo stasu cu kargu | Is the soup expensive? |
go'i .i lo stasu cu meryru'u li re no | Yes — the soup costs 20 dollars. |
.u'u .i lo stasu cu kargu | Ugh! The soup is expensive. |
xu do se jdini | Do you have money? |
milxe .i .ai mi pleji | A little. I'll pay. |
ki'e | Thank you! |
Anticipation prompts
| Prompt | Lojban |
|---|---|
| Is it expensive? | xu kargu |
| I don't have money. | mi na se jdini |
| The soup costs 20 dollars. | lo stasu cu meryru'u li re no |
| I'll pay. | .ai mi pleji |
Spaced recall — Lessons 9–11
| Lojban | English |
|---|---|
| mi pu klama le panka .i ku'i mi ba klama le zdani | I went to the park, but I'll go home. |
| .ai mi pinxe lo djacu | I'm going to drink water. |
| .au mi citka lo stasu | I want to eat soup. |
| .ai mi klama lo gusta | I'm going to a restaurant. |
| ca le prulamdei mi pu klama le panka | Yesterday I went to the park. |
Challenge
| Prompt | Lojban |
|---|---|
| I went to the restaurant yesterday. The soup was expensive. | ca le prulamdei mi pu klama lo gusta .i lo stasu cu kargu |









