English approximations are in some cases very loose, and only intended to give a general idea of the pronunciation. See Malagasy language#Phonology for details.
↑ 1.01.11.21.3/tsdzsz/ vary between these sounds, depending on speaker and situation. The latter is especially common when followed by the vowel /i/, including its reduced form [ʲ]. That is, [sʲ] is generally closer to English shill.
↑ 2.02.1As the Malagasy spellings ‹tr, dr› suggest, /ʈʂɖʐ/ may be released into a trill, depending on speaker and situation.