Some simple phrases

Yes. .i go'i
No. .i na go'i
Please. pe'u do
Thank you. ki'e do
Thank you very much. ki'ecai do
That's all right/You're welcome je'e do
What's the time?ma tcika le cabna
I love you.mi prami do

Languages

Do you speak ... .i xu do se bangu ...
Lojban la lojban. (In some places you may also hear "le jbobau")
English le glibau
French le fasybau
German le dotybau
Spanish le sanbau
Italian le banrtalia
Chinese le jugbau
Japanese le ponbau
Hindi le xinbau
Russian le rukybau
Arabic le rabybau
I don't speak Lojban .i mi na se bangu la lojban.
Where is the phrase in this book? .i ma jufra gi'e se vanbi le vi cukta
Just a minute. I'll see if I can find it in this book. i .e'o ko denpa .i mi troci co tolcri fi le vi cukta
I understand. je'e / .i mi jimpe
I don't understand je'enai / .i mi na jimpe
Could you talk more slowly please? .i .e'o ko skusno zenba
Do you understand me ?xu do jimpe fi mi
I am hungrymi xagji
I am thirstymi taske
Where is the bathroom ?ma stuzi le djacu kumfa
Where is the toilet ?ma stuzi tu'a le zu'o kalci/ma stuzi le vimku'a

Some common words

big barda small cmalu
quick sutra slow masno
early clira late lerci
cheap tolkargu expensive kargu
near jibni far darno
hot glare cold lenku
full culno empty kunti
easy frili difficult nandu
heavy tilji light linto
open kalri shut ganlo
right (of a person) tolsre wrong srera
right (of a fact, etc.) drani wrong toldra
old tolni'o new cnino
old tolci'o young citno
beautiful melbi ugly tolmle
good xamgu bad xlali
better xagmau worse xlamau
a lot mutce a little milxe

Presenting yourself and some others...

Before reading what follows, please take note that talking about the age of someone in lojban is essentially discussing birth dates.

Yourself

I am ...-years-old(bad translation:) .i tu'a mi nanca li ...
(duration of life:) .i mi renvi fi li ...
I was born in ... (date)mi jbena fi li ...
I was born in ... (place)mi jbena fo ...
I am ... tall (speaking about your height, unit unspecified) li ... cu ni mi clani
I am ... meters tallmi mitre li ... le ni clani
I speak english.mi se bangu le glibau
I can speak french.mi ka'e se bangu le fasybau
I would like to visit ...mi djica le nu mi vitke fi ...
I work as ... mi se jibri ...
My mother is called ...zo ... cu cmene le mamta be mi
Alice is my mother. la alis mi mamta
My favorite color is ...mi zmanei le ka ... (insert color verb)
I prefer the blue one over the red one.mi zmanei le blanu le xunre
What's happening ?.i mo
I'm lostmi djuno noda le se zvati be mi
I practice sportmi xadgu'a

Colors

Beware, the following words are verbs. For example, "this is orange" is "ti narju" - no "is" required. The word "cu" (which does not mean "is" but is a predicate marker, like "i" in tok Pisin) may be used before the verb.

xekriblack
blanublue
bunrebrown
cicnacyan
mankudark
kandidim
grusigrey
crinogreen
nuknimagenta
narjuorange
zirpupurple
xunrered
labyxu'erose
xunblabipink
blabiwhite
pelxuyellow

Asking others about themselves and you

When are you born ?.i do jbena fi ma
What is your size ?.i ma ni do clani
Where do you live ?.i do xabju ma
What are you doing ?.i do mo
Where do you work ?.i do se briju fi ma
Can you speak language ... ?.i xu do ka'e tavla bau ...
What is your father's name ?.i ma cmene le patfu be do
Have you already been to place ... ?.i xu do pu zvati ...
How much do you earn ?.i do jerna li xo
Where are you going to ?.i do klama ma
Where do you come from ?.i do klama fi ma
Did you know that ... ?.i xu do pu djuno fi le du'u ...
What do you want me to do ?.i do djica le nu mi mo
Can you help me ?pei sidju mi
Do you find me pretty ?xu mi do melbi
Do you live with someone ?xu do da kansa le ka xabju
Are you married ?xu do speni
Do you have (a) lover(s) ?xu do prami selpe'o