To work with structures is quite easy. The word order is fixed, and we use what is known as a slot and filler technique to practice it. Take the utterance Are you tired?. If we regard tired as a slot, we can replace it by other adjectives to create Are you bored/hungry/sad/ill/? And so on. The utterance Are you playing chess this evening? Will generate a host of similar questions (watching TV/going to the cinema? Etc).