As you will know from A Level Spanish, when you use the construction "Es (adjective) que...", it is very likely that you will need to follow this with a subjunctive verb. However, there are a couple of exceptions, which relate to whether the adjective you are using is one which suggests certainty. To help you remember some adjectives that require the indicative to follow, here is a useful nmemonic: Verdad (True)Obvio (Obvious)Cierto (Certain)/ Claro (Clear)Evidente (Evident) Seguro (Sure/Safe) This spells VOCES, which should help you to remember which verbs to use if you are uncertain of using the subjunctive in spoken or written situations, while still maintaining great style!!