YOU SAID:
the large crab is shedding it's skin
INTO JAPANESE
大きなカニが皮を剥いでいる
BACK INTO ENGLISH
Big crab is skinning
INTO JAPANESE
大きなカニはスキニング
BACK INTO ENGLISH
Big crab skinning
INTO JAPANESE
大きなカニのスキニング
BACK INTO ENGLISH
Big crab skinning
That didn't even make that much sense in English.