Three pairs of verbs require special study and drill because they are more difficult to use correctly than any other verbs. These special verbs are lie, lay, sit, set, rise, and raise. Most difficult to use correctly are the verbs lie and lay. If you do not habitually...
The past perfect tense is used to express action (or to help make a statement about something) completed in the past before some other past action or event. It is formed with had. —-Warriner’s English Grammar and Composition...
