I think It should be written like "dog eats dog" as dog is considered singular noun.
dog eat dog is correct.It is a idiom,which means "there is fierce ruthless competition"
I think "dog eats dog" is correct.
"dog eat dog" is correct in a idiom.
dog eats dog is write
It is an idiom.It is correct only.
I think you are right it should be Dog Eats Dog.
It means dispropasal of situation
Time word and verb
Dog-eat-dog is the correct way.
dog eats dog
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