The word to is frequently used with an infinitive, but it is not an essential part or sign of it. When an infinitive is used… Continue reading

Subject + verb + to-infinitive In this pattern, the infinitive is used as the object of the verb. She wants to go. I want to… Continue reading

Subject + verb + interrogative + clause I asked where she was going. Nobody knows when he will arrive. I wonder what he wants. She… Continue reading

Frequency adverbs (e.g. often, always, never, sometimes, generally, seldom, rarely, ever, frequently etc.) usually go in the following positions: before the main verb after the… Continue reading

Must does not always express compulsion or obligation. It is sometimes used to express inference or possibility or certainty. She must be home by now.… Continue reading