As stated up there in my comment, Heatran is an ideal counter to Clefable. Standard Clefable sets have nothing to hit it. All you really need to do is keep it relatively healthy and you can stop Clefable easily. I suggest Heatran over other Steel types, and there is two reasons for this. The first is its Fire immunity, as most good Clefable sets run Flamethrower.
Definition. The genitive is the case (or function) of an inflected form of a noun or pronoun showing ownership, measurement, association, or source. Adjective: genitival. The suffix -'s on nouns is a marker of genitive case in English.
A verb expresses an action or indicates a state or condition. An infinitive is the form of a verb that shows no subject or number, such as comprar/ to buy, vender/ to sell, recibir/ to receive. Verbs consist of a stem, such as compr in comprar, vend in vender, recib in recibir, and an ending, such as-ar, -er, -ir.