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If I wanted to say "I ate something this morning" or "Did you eat something
this morning", would I use a particle with "this morning"?

Example:

> **けさ** 、なにかたべましたか？

vs

> **けさは** なにかたべましたか？
CC BY-SA 3.0
2016-06-01T00:14:37.640
34537
2016-06-01T00:49:29.280
2016-06-01T00:49:29.280
13645
question
particle-は adverbs time
Using particles with a time as a topic
You have a choice; You can say it with or without 「は」. The more informal the
speech, the more often the 「は」 is dropped.

The only situation in which 「は」 is not optional and it must be used is when
you talk about what someone ate/will eat this morning in comparison to what he
ate/will eat on another day. That is always 「けさ **は** 」 as 「けさ」in those cases
is an importat topic.

(The common mistake among Japanese-learners that I have been witnessing is to
use 「に」 instead of 「は」 with words such as 「けさ」,「きょう」,「あした」, etc. .)
CC BY-SA 3.0
2016-06-01T00:27:38.993
34538
2016-06-01T00:27:38.993
34537
answer