определить по суффиксу часть речи Situation, vacation, unable, unusual, easily, latery, early, hardly, structural, famous, recognition,protection, probably, presently, naval, mysterious

Situation - noun (-ion)

vacation - noun (-tion)

unable - adjective (-able)

unusual - adjective (-al)

easily - adverb (-ly)

latery (слово почти не используется в английском, может быть как вариацией слова later - adjective/adverb (-er), lately - adjective/adverb (-ly) в зависимости от контекста, так и просто noun (-ry)

early - adjective, чаще adverb (-ly)

hardly - adverb (-ly)

structural - adjective (-al)

famous - adjective (-ous)

recognition - noun (-ion)

protection - noun (-ion)

probably - adverb (-ly)

presently - adverb (-ly)

naval - adjective (-al)

mysterious - adjective (-ious)