YOU SAID:

the woods are dense and dark

INTO JAPANESE

森は濃くて暗い

BACK INTO ENGLISH

The forest is dark and dark

INTO JAPANESE

森はどんどん暗いです

BACK INTO ENGLISH

The forest is increasingly dark

INTO JAPANESE

森はますます暗くなっています

BACK INTO ENGLISH

The forest is getting darker

INTO JAPANESE

森は暗くなってきています

BACK INTO ENGLISH

The forest is getting darker