Swedish: Why was the 'är' repeated in this sentence?

[normordm]

I was speaking with a Swedish native and good friend of mine and he said correcting me over mixing past and present tense in a sentence:

Jag ska gå till skolan är presens, nutid. Samtidigt är ”kom tillbaka” är dåtid

So I understand he's trying to say:

'I will go to school' is in the present while 'came back' is in the past

But what I do not get is why he repeated 'är' twice: once after 'Samtidigt' and another before 'dåtid'. Is it just a simple typo? Or does it mean anything? if it's a typo then do let me know which one of the two should be deleted.

I appreciate you help, this forum is awesome btw.

 

[Swedish Anna]

Hejsan! It's a typo. It should read: Samtidigt är "kom tillbaka" dåtid. (or: Men "kom tillbaka" är dåtid.)

 

[normordm]

Thank you, I was really scared for a minute there; I thought there was some new rule I'd have to learn :/