Here's an important reason why many people are not fluent in English: They try to speak and write English mainly by stringing individual words together, rather than by assembling clusters of words together.

They do this, because they’re not aware of a basic truth: The real units of language-production are word-clusters, and not individual words. They know a good number of words, but they don’t have a good command of the word-clusters that these words often combine into. For example, they know a large number of nouns and adjectives. But they don’t have a good command of the ‘adjective + noun’ combinations of frequent utility.

On the other hand, people who are comfortably fluent in English speak and write it most of the time by assembling word-clusters together — and, only when there’s a pressing communicative need, by stringing individual words together. This strategy helps them to get over the pressure of processing their language in the here and now and to speak and write easily and effortlessly.

If word-clusters are an area of difficulty for you, here’s a ground-breaking book that can help you. This book gives you carefully compiled collections of common combinations of adjectives and nouns. You’ll find these combinations grouped together under various headwords in dictionary form. All these headwords are nouns. At the entry for each noun, you’ll get the combinations of that noun and the adjectives that are normally used with it. Not a confusing collection of all ‘adjective + noun’ combinations that are possible in theory, but an extremely useful collection of combinations formed that are frequently needed for the production of English.

For more details, read the Introduction page.