Table 3: Language-specific patterns (in percentage) in the frequency of word shapes, syllable types and stress patterns, for child speech (CS), child directed speech (CDS) and adult directed speech (ADS) compared to the EP-CDI SFs.

Sources: for CS, Vigário et al. (2006) for word shapes, Correia (2010) for stress patterns, FrePoP child speech sample from 1;0 – 3;0 (~70,000 words) for complex syllables; for CDS, CDS-EP; for ADS, FrePoP spontaneous speech sample ~500,000 words).
Word format % 1s 2s ≥3s Complex
Syllables*
Penult.
stress
Final
stress
Antep.
stress
CS 28 47 21 13 41 26 0,9
CDS 41 47 12 11 41 18 0,4
ADS 26 44 30 15 56 16 2
EP-CDI SFI 19 61 20 15 61 19 1
EP-CDI SFII 20 53 27 18 63 14 4

*Syllables that have a complex onset and/or a complex coda.