miss you
mishu
/ˈmɪʃu/Assimilation
In real speech
What happens to the sounds
s + y blend into “sh”: miss you → “MISH-u”. Same with bless you → “BLESH-u”.
When to use it
Missing someone: I miss you, I'll miss you. Sounds this way in any conversation.
Casual → formal
Slang
miss ya
Neutral
I miss you
Sound notes
Assimilation: neighbouring sounds change each other, e.g. t + y → “ch”, d + y → “j”.