Can <time>+から be used with an instantaneous verb?


A student is (informally) introducing himself:

> 先週からこのシェアハウスにやってきた大学3年生。

IIUC, やってきた (just like 来た) is an instantaneous verb, i.e., it expresses an
instantaneous change from one state to another. On the other hand, I thought
`<time>+から+<verb>` can only be used to describe something happening over a
period of time.

So I expected that the above sentence is incorrect, and must be rewritten as:

> 先週このシェアハウスにやってきた大学3年生。 (drop から)

or

> 先週からこのシェアハウスに泊まっている大学3年生。 (use a stative verb)

However, the original sentence is from a Japanese textbook, so I'm sure it's
correct. What am I misunderstanding?




Your understanding is correct. から marks the beginning of a period and should
not be used with an instantaneous verb like （やって）くる. I would say that sentence
is grammatically incorrect.

Having said that, though, a sentence like that is not uncommon in everyday
conversation. The meaning of いる is inferred from やってきた and いる is compatible
with から.




Your understanding is correct. から marks the beginning of a period and should
not be used with an instantaneous verb like （やって）くる. I would say that sentence
is grammatically incorrect.

Having said that, though, a sentence like that is not uncommon in everyday
conversation. The meaning of いる is inferred from やってきた and いる is compatible
with から.

