YOU SAID:
The sushi was the most delicious thing I have eaten at this establishment
INTO JAPANESE
寿司はこの確立で食べている最も美味しいもの
BACK INTO ENGLISH
Sushi is the most delicious thing is ate at this establishment
INTO JAPANESE
寿司はこの確立で一番おいしいものを食べた
BACK INTO ENGLISH
Ate at this establishment most delicious sushi
INTO JAPANESE
この確立の最も美味しいお寿司で食べた
BACK INTO ENGLISH
Ate at this establishment's most delicious sushi
INTO JAPANESE
この確立の最も美味しいお寿司で食べた
BACK INTO ENGLISH
Ate at this establishment's most delicious sushi
That didn't even make that much sense in English.