What is the meaning of this 連用形 pattern?


> 政府、1日75万人の感染者想定し対策

Is it equivalent to 政府、一日七十五万人の感染者想定した対策?

What is the grammar behind this pattern?

Is 一日(に) abbreviated?




Sometimes 連用形 can end a clause without て. The construction is called 連用中止(形).
For example, see the following questions (you can search others on the site).

  * [Is there a term for using conjugating verbs such that the sentence continues with another clause?](https://japanese.stackexchange.com/q/9771/45489)
  * [Is the 「て」 missing from 「され」 in this sentence?](https://japanese.stackexchange.com/q/33256/45489)

I assume it is a headline or something. Just like in English, headlines try to
be succinct and often omit particles.

1日(に/あたり) are rather variants, as _X a day_ / _X per day_ in English.

A fuller version (not unique, of course) is

> 政府 **は** 1日 **(に/あたり)** 75万人の感染者 **を** 想定し **て** 対策 **を検討している**

* * *

Semantically 想定した対策 works perfectly. But omitting た in a noun modifying clause
is generally not possible.

* * *

FYI Some other questions on headlines.

  * [What is the meaning of "超か" in this news headline?](https://japanese.stackexchange.com/q/45029/45489)
  * [What does へ mean at the end of this sentence?](https://japanese.stackexchange.com/q/90600/45489)




Sometimes 連用形 can end a clause without て. The construction is called 連用中止(形).
For example, see the following questions (you can search others on the site).

  * [Is there a term for using conjugating verbs such that the sentence continues with another clause?](https://japanese.stackexchange.com/q/9771/45489)
  * [Is the 「て」 missing from 「され」 in this sentence?](https://japanese.stackexchange.com/q/33256/45489)

I assume it is a headline or something. Just like in English, headlines try to
be succinct and often omit particles.

1日(に/あたり) are rather variants, as _X a day_ / _X per day_ in English.

A fuller version (not unique, of course) is

> 政府 **は** 1日 **(に/あたり)** 75万人の感染者 **を** 想定し **て** 対策 **を検討している**

* * *

Semantically 想定した対策 works perfectly. But omitting た in a noun modifying clause
is generally not possible.

* * *

FYI Some other questions on headlines.

  * [What is the meaning of "超か" in this news headline?](https://japanese.stackexchange.com/q/45029/45489)
  * [What does へ mean at the end of this sentence?](https://japanese.stackexchange.com/q/90600/45489)

