Brazilian Portuguese speakers change ‘t’ and ‘d’ to ‘ch’ and ‘j’ respectively before ‘i’ and ‘e’ sounds. For example, the word ‘de’ meaning ‘of/from’ is pronounced more like ‘juh’.

This happened in Japanese too, where the original “ti, tya, tyo” became “chi, cha, cho”! These are all types of [palatalisation](…wikipedia.org/…/Palatalization_(sound_change\)), which is one of the most common types of sound change across languages.