Japanese · Pronunciation Guide
mo-tsu, two beats, and the tsu is one sound — never "t" plus "soo."
motsu
The accent falls on the first mora, but that is pitch only: mo and tsu take exactly the same time. In practice the second beat is often nearly voiceless, which makes English speakers assume it can be dropped. It can't — the timing slot remains, so the word takes two counts even when you can only hear one and a half.
Listen: 持つ
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大きいかばんを持っています。
Ookii kaban o motte imasu.
I have a big bag.
Listen: 大きいかばんを持っています。
Free browser voice. Hear it read by a real native speaker inside the LingoDrop app.
大きいかばんを持っています conjugates it to 持って, which converts the tsu into a geminate: mo-t-te, three morae with a silent held beat in the middle. Watching the same verb move between a tsu and a doubled t is a good way to see how Japanese redistributes length rather than adding or removing it.
The affricate defeats most beginners: they produce "MOE-tsoo" with a separated t and s, rounded lips, and a stressed first syllable. Aim for one gesture — think of the noise at the end of "boots" and move it to the front of a syllable. Then flatten the lips and let the final vowel fade rather than ringing out.