Spring Has ComeはSpring is comingだった

春が来た という童謡、皆様、御存じでしょう。
英語ではどう言うんですかね?
Spring Has Come
 
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Spring is coming, spring is coming,
Where is spring now?
(Refrain)
Here in the mountains,
Here in the village,
And here in the fields.
Flowers bloom, flowers bloom,
Where do flowers bloom?
Here in the mountains,
Here in the village,
And here in the fields.
Birds are singing, birds are singing,
Where do birdies sing?
Here in the mountains,
Here in the village,
And here in the fields.
 

えっ、Spring Has Comeの英訳はSpring is comingだったー。春が来たで動揺しました?
どうせ、日本語には時制は現在と過去しかないんだから現在完了形だろうが現在進行形だろうが日本語にしたら過去形か