言葉にできない。
without words
of something, to be inexpressible in words
もう言葉にならない
I don't have the words.
I can not understand them
I can't say anything.
I had great trouble to make myself understood
言葉にできない。
of something, to be inexpressible in words
Words are inadequate to express it.
I can not understand them
I had much ado to make myself understood
I had great trouble to make myself understood