Hi Lcchang Friendly and friendlier are adjectives. The sentence is ungrammatical. It should be He acts in a friendlier way than his father if you want to include the word friendlier .
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Cool BreezeHi LcchangWhat about the second one? Do you think whether it makes sense too?
Friendly and friendlier are adjectives. The sentence is ungrammatical. It should be He acts in a friendlier way than his father if you want to include the word friendlier.
CB
Cool BreezeAs I said, friendly is an adjective, which means it can never be used as an adverb. In other words, both your sentences are incorrect. Strictly speaking, you should steer clear of more friendly even as an adjective because friendly is a disyllabic adjective ending in ly, and such adjectives take er and est endin
YankeeHi LCChang
It is common to use an adjective after a linking verb. The verb 'act' can be and is used as a linking verb. In your sentence(s) the meaning is similar to "He seems friendlier" or "His actions are friendlier". Therefore, I think your sentences are fine.
By the way, you will find friendly listed not only as an adjective,