"The work starts on Monday."

Translation: しごとは月よう日にはじまります。

[Candy580365]

Why is に used here?

[KeithWong9]

To represent an exact time. This can be omitted.

[MarloesOos]

But sometimes I see は after a time expression like
今日は, When would you use は and when に?

[Candy580365]

Thank you for clarifying. I watch a lot of Japanese programming and I usually don't hear the に so I was a little confused if it was necessary..

[sir_fifi]

Can't the sentence start with "getsuyoubi ni shigoto ha...

[KeithWong9]

Yes it can. If not then please report.

[RastaLion426]

What is the difference between the "te" end and "ri" end for start?

[Candy580365]

The "te" form in "hajimete" is derived from "hajimeru" whereas the "ri" form is from "hajimari".

"Hajimeru" is a transitive verb thus requires an object.
"Hajimaru" is an intransitive verb and does not require an object.

Examples are,
I will start the class = Watashi wa kurasu o hajimemasu.
The class will start = kurasu ga hajimarimasu.

[LM0Uxa]

Ca you use から here?

[BreathlessTao]

After having gotten flagged incorrect on too many occasions for missing "the" (despite no such thing in the Japanese version of sentences), I would very much like to flag Duo as incorrect for missing その or some such from the Japanese here.