YOU SAID:
I can not understand what this tool does
INTO JAPANESE
私はこのツールは理解できません。
BACK INTO ENGLISH
I can't understand this tool.
INTO JAPANESE
私はこのツールを理解することはできません。
BACK INTO ENGLISH
I cannot understand this tool.
INTO JAPANESE
私はこのツールを理解することはできません。
BACK INTO ENGLISH
I cannot understand this tool.
You love that! Don't you?