A relative clause adds information about a noun by joining it to a second idea, so you avoid writing two short, choppy sentences. It usually begins with a relative pronoun — who, which, that, whose — or a relative adverb such as where or when. When the regulator confirmed that it had cleared electric air taxis to fly, almost every sentence in the coverage leaned on them.
Continue reading Structure: ‘Relative clauses’We use too to say that something is more than we want, or more than is safe: the aircraft descended too low. We use enough to say that something is the right amount or is sufficient: the crew did not have enough time to react. Both words talk about degree, but they sit in different places in the sentence.
Continue reading Structure: ‘Too and enough’Both tenses talk about the past, but they do different jobs. We use the present perfect for past actions that are connected to now — a result, an experience, or news that still matters. We use the past simple for finished actions at a definite time in the past.
Continue reading Structure: ‘Present perfect vs past simple’The past perfect (had + past participle) shows that one past action happened before another past action. When we tell a story in the past simple, the past perfect lets us step further back to explain the background.
Continue reading Structure: ‘Past perfect’In standard English, sentences follow the pattern Subject + Auxiliary + Main Verb: The FAA has rarely issued such a broad directive. Inversion reverses this order, moving the auxiliary verb in front of the subject: Rarely has the FAA issued such a broad directive. The meaning stays the same, but the fronted element carries extra emphasis and the register becomes formal or literary.
Continue reading Structure: ‘Inversion’In a direct question, the auxiliary verb comes before the subject: When will the air taxi be available? In an indirect question, the auxiliary moves back after the subject: Could you tell me when the air taxi will be available? The meaning is identical, but the indirect form sounds more polite and professional.
Continue reading Structure: ‘Indirect questions’