YOU SAID:
sensei shitsumon ga arimasu
INTO JAPANESE
先生下門があります
BACK INTO ENGLISH
There is a teacher infraphylum
INTO JAPANESE
下敷きの先生がいます
BACK INTO ENGLISH
There is a teacher underlay
INTO JAPANESE
先生の下敷きがあります
BACK INTO ENGLISH
There is a teacher's shitajiki
INTO JAPANESE
先生の下敷きがあります
BACK INTO ENGLISH
There is a teacher's shitajiki
That didn't even make that much sense in English.