YOU SAID:

and if you don't have any friends you must be lonely, and that made me so sad,

INTO JAPANESE

そして友達がいないと寂しいに違いない、それがとても悲しくなった、

BACK INTO ENGLISH

And I must be lonely without my friends, it made me very sad,

INTO JAPANESE

そして友達がいないと寂しいに違いない、とても悲しくなった、

BACK INTO ENGLISH

And I must be lonely without my friends, I became very sad,

INTO JAPANESE

そして友達がいないと寂しいだろう、とても悲しくなった、

BACK INTO ENGLISH

And I would be lonely without my friends, I became very sad,

INTO JAPANESE

そして友達がいないと寂しいだろう、とても悲しくなった、

BACK INTO ENGLISH

And I would be lonely without my friends, I became very sad,