Put enough before a noun, as in enough time or enough chairs. Put it after an adjective or adverb, as in warm enough or quickly enough. Use enough to plus a base verb when you say what someone or something can do.
Use exercise for physical activity, a practice task, or the use of an ability or right. Use exorcise for an attempt to drive out an evil spirit in a religious or fictional context.
Choose a few or few with things you can count, and a little or little with an amount you do not count separately. Use a few and a little when some amount is available. Use few and little when the amount seems smaller than needed or expected.
Learn a fixed expression as a complete chunk of language. Notice its usual words, grammar, situation, and meaning. Do not replace one word just because it has a similar dictionary meaning.
A flea market is a market with many individual sellers, especially one where people buy and sell used, old, unusual, or low-cost goods. Say at a flea market when you mean the place: We found the mirror at a flea market.
Food idioms use food words to express another idea. A piece of cake means something is easy, spill the beans means reveal information, bread and butter means a main source of income, in a pickle means in a difficult situation, and full of beans means lively and energetic.
Understand a food idiom from the whole situation, not from each word alone. The apple of someone's eye is a much-loved person, sour grapes describes bitter criticism after disappointment, and butter someone up means flatter someone to get a favor.
Choose your tone after you decide who will read the message and what you need from them. Use a suitable greeting and closing, make requests politely when the situation needs it, and avoid slang or very casual abbreviations in formal writing.
To form many adverbs, add -ly to an adjective: careful becomes carefully. With an adjective ending in consonant plus y, change y to i and add -ly: happy becomes happily. Check the sentence too: an adjective describes a noun, while an adverb often tells how an action happens.