YOU SAID:

Shall out-tongue his complaints. 'Tis yet to know

INTO JAPANESE

彼の不平を口に出さなければならない。まだ知らない

BACK INTO ENGLISH

I must voice his complaints. I do not know yet

INTO JAPANESE

私は彼の不平を言わなければなりません。まだ知らない

BACK INTO ENGLISH

I have to complain about him. I do not know yet

INTO JAPANESE

私は彼について文句を言わなければなりません。まだ知らない

BACK INTO ENGLISH

I have to complain about him. I do not know yet