How to Say ‘Do (polite)’ in Japanese
します
shi masu
[shee mahss]
💬 Usage Tip: [します] is the polite “do.” Many feelings become verbs with it: [安心します], [緊張します], [びっくりします].
🇯🇵 In Japan: Using [〜します] is a polite, safe default in clubs—especially when talking to older members or in semi-formal introductions.
Phrase Breakdown
し
shi
[shee]
do (polite) (part of します)
し is the stem of する (“to do”). With a noun like 安心, it forms a verb: 安心する = “feel relieved.”
一人じゃないって思うと安心します。
When I think I’m not alone, I feel relieved.
ます
masu
[mahss]
polite present/future ending (part of します)
ます makes the verb polite. します is polite and appropriate in club introductions and first conversations.
みんなが優しいので安心します。
Everyone is kind, so I feel at ease.
Get the Full Learning Experience
This lesson is just a preview. Download PrettyFluent to practice pronunciation, roleplay conversations, and master vocabulary with spaced repetition.
Pronunciation Feedback
AI-powered speech recognition to perfect your accent
Spaced Repetition
Retain vocabulary long-term with smart practice
Immersive Roleplaying
Practice real conversations with AI partners
Custom Scenarios
Request lessons tailored to your specific needs
What Learners Are Saying
“Teaching in Osaka and I wanted to connect with my students beyond the classroom. The everyday conversation scenarios made my Japanese feel natural, not textbook-y.”
Mia S., 25, English Teacher
“Moved to Tokyo and the polite vs. casual speech levels were killing me. This app breaks it all down with real scenarios. My coworkers noticed the difference in weeks.”
Kevin Z., 31, Game Developer
“I tried five different apps before this one. The roleplay conversations are what finally made things click. I actually remember what I learn now.”
Sofia R., 31, Marketing Manager