• Примеры инверсии: отрицательные слова и обороты в начале предложения = порядок слов как в вопросительных предложениях.
Only by working hard will a student be able to do well on the exam.
Never have people been so concerned about this problem as today.
Nowadays, food has become easier to prepare. Indeed, rarely can we see people who make pasta by themselves.
• Пример употребления герундия: Каким образом? = by + -ing form.
By visiting museums a person can broaden the horizons of his knowledge and become open to the world culture.
• Пример сравнительной конструкции без употребления слова than.
Of the two options, the second is the more reasonable.
• Примеры употребления одной из параллельных конструкций (not only...but also), а также конструкции Subjunctive (it is essential/recommended/suggested/... that + инфинитив глагола без частицы to: They suggest/recommend/... that she be at the meeting). Кстати, в британском варианте эту конструкцию Subjunctive следует употреблять с глаголом should + инфинитив (should treat; should be).
A good boss is not only a professional worker but also a charismatic leader who possesses certain positive qualities. It is essential that a boss treat all his employees impartially.