Though much more research needs to be done on the exact processes that infants use to begin speech segmentation, current and past studies suggest that English-native infants approach stressed syllables as the beginning of words. At 7.5 months, infants appear to be able to segment bisyllabic words with strong-weak stress patterns, though weak-strong stress patterns are often misinterpreted, e.g. interpreting "guiTAR is" as "GUI TARis". It seems that infants also show some complexity in tracking frequency and probability of words, for instance, recognizing that although the syllables "the" and "dog" occur together frequently, "the" also commonly occurs with other syllables, which may lead to the analysis that "dog" is an individual word or concept instead of the interpretation "thedog".