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When do you omit the い? Is it ungrammatical to use してる?
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2017-07-28T05:19:21.527
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2021-07-20T07:54:01.987
2017-07-28T05:56:01.207
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question
grammar nuances verbs て-form contractions
What is the difference between ～してる and ～している?
It is technically ungrammatical in written texts (my Japanese teacher back
then used to remind us often about that). Technically, it's part of the so-
called "casual" style in the Japanese language. That is, い is often (almost
always) omitted in casual conversations among friends or same-level people.

However, it is quite commonly accepted now in (some) texts as well as it
reflects as I said the casual conversational style.

Maybe the fact that is so often found in written texts nowadays is a legacy of
the IT-revolution (let's call it this way) of the past decades. With the
advent of modern technologies and the exponential increase of instant
messaging, people just started naturally to "write the way the speak" more and
more often.

I would say that, in a way, it could be compared to how some kids write texts
using abbreviations such as "idk", "ttl" or.. "wtf". :D
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2017-07-28T05:28:52.530
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2017-07-28T05:28:52.530
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answer
してる is simply a colloquial contracted form of して **い** る, similarly one has
してない contracted from して **い** ない. It is very common in spoken language, but
ungrammatical in "proper" (school) grammar.

This contraction is maybe similar to contractions such as

  * _she had/would → she'd_
  * _it is → it's_
  * _I have → I've_.
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2017-07-28T05:49:59.313
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answer