YOU SAID:
i will eat cats tonight
INTO JAPANESE
私は今夜猫を食べます
BACK INTO ENGLISH
I will eat a cat tonight
INTO JAPANESE
今夜は猫を食べる
BACK INTO ENGLISH
I'll eat a cat tonight
INTO JAPANESE
今夜猫を食べるよ
BACK INTO ENGLISH
I will eat a cat tonight
INTO JAPANESE
今夜は猫を食べる
BACK INTO ENGLISH
I'll eat a cat tonight
INTO JAPANESE
今夜猫を食べるよ
it is unlikely that this phrase will ever reach equilibrium