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To do, play する・します

Oni's picture
Suru is a very useful verb thingy.  It is used where no other verb dares to go! (Foreign words, nouns, and other scary things...) Think of it as "to do..."
ジョギング する jogingu suru - to (do) jogging
ショッピング する shoppingu suru - to (do) shopping
サイン する sain suru - to sign (autograph) 



勉強 する benkyou suru - to study
毎日、 日本語 を 勉強 します
mainichi, nihongo o benkyou shimasu.
Everyday, (I) am studying Japanese.

The を o is the direct object marker.  You will notice it moves around sometimes.  Don't worry about this now, just concentrate on suru.


Another usage of する -or- します is "to play" as in sports or games

野球 を する yakyuu o suru. To play baseball.
相撲 を する sumou o suru. To play (do) Sumo. 
バスケットバール を する basuketto ba-ru o suru. To play basketball. 
将棋 を するshougi o suru. To play shogi (Japanese chess)

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hey .. if use an "o" for objects why isnt there an o in the sentence: jogingu suru.
shuldn't it be like..jogingu o suru..
because jogingu is an object right ..or is it?

Live to eat , don't eat to live :€

Ranja's picture

You can omit 'o' in any of the above examples.
Also, you can use 'o' in any of them.
If you omit 'o', it sounds more colloquial.

ジョギングをする is a completely natural Japanese expression.
ジョギングする is preferred at times, presumably because the word ジョギング is long (has many syllables).

When a noun has intrinsically some meaning of "action" in it, you can directly append 'suru' to it to make a verb, such as 心配する(to worry), 飲酒する(to drink), and ジョギングする. These are not considered to be colloquial.

However, when a noun doesn't have such meaning, or 'suru' has the meaning of 'to play', you need 'o' before 'suru' (e.g. 鍵をする(to lock), 野球をする(to play baseball)). You can surely omit 'o' in these cases also, but it is a more colloquial usage.

日本語を勉強する becomes 日本語の勉強をする if you don't omit 'o'.

Frea's picture


Just like Sam says like he feels there should be an を which is eventually a topic marker.
Question is - is jogging in a very usual sense, an object at all? To me, or others who agree to this subject, jogging is necessarily not an object , but an action that also happens to suffice its conditions as a topic. For example:

ジョッギングしましょう。 - Let's go for jogging.
Here jogging is a gerund [verb to jog+ing]- an action, but not an object

Another example I would like to phrase here is:

愛する - To love (no usage of を occurs)
愛します- I love (No occurence of topic marker を takes place)


if i want to say .... "may i play baseball?" can i say:
watashi wa yakyuu o shite ka?

Live to eat , don't eat to live :€

watashi wa yakyuu o shite ka?

I do not see the sense of "may" in your sentence.

shite => you wouldn't use the T-form here.

watashi wa => I feel that this particule suggests that you are asking to yourself, or you are asking if you, too, may play (as far as I'm concerned, may I...)

So I would suggest (well, I am a beginner also...):

watashi ga yakyuu suru wo ii desu ka
(is it OK that I play baseball ?)


I think you're thinking of the form,
watashi ga yakyuu site mo ii desu ka

(The 'わたし' is not normally explicitly stated when asking questions with this grammar pattern.)

regarding "o"

may I ask nevertheless when do you add "o" and when to not? I'm really curious to know, thanks. =]


The particle を "o" is the direct object marker used for verbs.

Whenever you have a verb that acts directly upon the object you connect it using this particle.

野球 を する yakyuu o suru. To play baseball.
Doing (o) basketball
相撲 を する。 sumou o suru. To play (do) Sumo.
Doing (o) sumo

日本語 を 勉強 します。
nihongo o benkyou shimasu.
To study (o) Japanese

Some other examples
本を開けてください hon o akete kudasai
please open (o) book

酒を飲む sake o nomu
drink (o) sake/alcohol

Frea's picture

Thank you ~*

Thank you ~*


Super Helpful

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