process. As expressions become more popular or adopt special meanings, they follow a gradual evolution from two or more separate or hyphenated words to single words.
audio visual
copy editor
wild life
audio-visual
copy-editor
wild-life
audiovisual
copyeditor
wildlife
The words in the first, second and third columns are called 'open compounds', 'hyphenated compounds' and 'closed compounds' respectively. In this unit we focus on hyphenated compounds.
A hyphenated compound is a combination of words joined by a hyphen or hyphens. Here, the hyphen aids understanding and readability and ensures correct pronunciation. Words are hyphenated mainly to express the idea of a unit and to avoid ambiguity.
I. In this story the author used the past perfect (had + past participle) in many sentences. If you observe the following sentences from the story and the rules given under them, you will understand why and how the past perfect is used.
English Class X | 83 |