Japanese is harder than Chinese The cat eats fish => 猫は魚を食べる || 猫吃鱼/猫吃鱼了 The cat doesn't eat fish => 猫は魚を食べない || 猫不吃鱼了 The cat eats fish (polite form) => 猫は魚を食べた || 猫已经吃鱼了/猫吃鱼了 The cat will eat fish => 猫は魚食べるつもり || 猫会吃鱼 The cat was eaten by fish => 猫は魚に食べられた || 猫被鱼吃了