Point 7. tO$ּ piּ versus piּ la2?

English ภาษาไทย
 He gets paid ten times per year.  เขาได้เงินสิบครั้งต่อปี
 He gets paid ten times a year.  เขาได้เงินปีละสิบครั้ง

In examples like the two above there is no meaning difference in meaning between tO$ּ piּ and piּ la2?; there is, however, an important difference in word-order which should be carefully noted.  In addition to the type of example of tO$ּ shown above, there is another type wherein it is preferable to use tO$ּ rather than la2?.