1. dǝ̀ǝ ເດີw is a final particle which emphasizes a preceding statement.  It is not customarily used when speaking to persons of higher social status than oneself.

ຂອບໃຈເດີw	khɔ̄ɔp cay dǝ̀ǝ	Thank you.
ລະວັງເດີw	lawáŋ dǝ̀ǝ	Look out.

2. jāa ຢ່າw 'don't' may be used alone or with fàaw ຟ້າວw or sūu ຊູ່.  w

ຢ່າບອກລາວw	jāa bɔ̂ɔk làaw	Don't tell him.
ຢ່າຟ້າວບອກລາວw	jāa fàaw bɔ̂ɔk làaw	Don't hurry to tell him.
ຢ່າຊູ່ບອກລາວw	jāa sūu bɔ̂ɔk làaw	Be sure not to tell him.

3. sá ສະw is a final particle meaning 'and be done with it', 'let it be'.  Followed by the particle nɔ̄ ເນາະwit is often used to express the idia 'Let's be done with it.' 

ຢູ່ສະw	jūu sá	(Don't go) please stay.
ລືມສະw	lýym sá	Forget it.
ລືມສະເນາະw	lýym sá nɔ̄	Let's forget it.
ເອົາຮ້ອຍກີບສະເນາະw	aw hɔ̀ɔy kîip sá nɔ̄	Take 100 kip (and let's be done with it.)

5. hây ໃຫ້ walso means 'to let, allow, permit'

ຄັນເຈົ້າໄປ, ຂ້ອຍສິໃຫ້ລາວໄປw

khán càw payˏ khɔ̂y si hây láaw pay If you go, I'll let him go.

The previous sentence could also be translated:

If you go I'll have him go.

5. tháŋ ທັ້ງw 'all' also means 'both.........and.....'

ທັ້ງນ້ຳຕານ ທັ້ງນົມw

tháŋ nàm taan thàŋ nóm

Both sugar and cream

6. khŷn  ຂຶ້ນw 'to rise' and lóŋ ລົງw 'to descend' also mean 'to increase' and 'to decrease'.

ລາວຕຸ້ຍຂຶ້ນw	láaw tùy khŷy	He is getting fatter.
ລາວເຕຍລົງw	]áaw tìa lóŋ	He has gotten shorter.

7. káp ກັບw 'and' often occurs in comparisons.  Note the word order. 

ອ້າຍກັບເອື້ອຍ, ຜູ້ໃດສູງກວ່າກັນw

àay káp yàyˏ phūu day sǔuŋ kūa dan

8. thȳa ເທື່ອw 'time, instance, occasion' is combined with nìi ນີ້,w nâa ໜ້າ,w   lὲεw nìi     ແລ້ວນີ້w

ເທື່ອນີ້ບໍ່ໄປw

thȳa nìi bɔ̄ɔ pay

He didn't go this time.