The productive type of reduplication places the reduplicated syllable in front of the root. Sometimes Japanese onomatopoeia produces reduplicated words. In comparative constructions the final syllables of each occurrence of the reduplicated root are accented. I put', with an unaspirated reduplicated consonant. In Khmer, nouns and adjectives can be reduplicated. Initially, syllable structure is limited to CVCV, called reduplicated babbling. Several noun stem have reduplicated stem material appearing between the stem and the number suffix. The reduplicated syllable is formed from the first consonant of the word and an . Actions that are continuous are indicated by a reduplicated initial syllable. These arose as contractions of reduplicated verbs. Some nouns are also reduplicated to indicate plurality. Adverbs can be reduplicated in the same manner as adjectives. This is also true of many Burmese verbs, which become adverbs when reduplicated. Some verb stems can be reduplicated to add the meaning of repetitive or intermittent activity. Indeed, can be reduplicated as .