DK Grammar Guide
159 “Ought to” is a more formal and less common way to say “should.” It is not usually used in the negative or question forms. “ ...
160 “Could” is often used to suggest a solution to a problem. It states a possible course of action without necessarily recommen ...
161 When people give suggestions using “could,” they often give more than one option to choose from. “COULD” AND “OR” FOR SUGGES ...
162 In English, “have to” or “must” are used when talking about obligations or things that are necessary. They are often used to ...
163 “Must not” and “don’t have to” do not mean the same thing. “Must not” is used to give an instruction that forbids someone fr ...
16 4 Modal verbs can also be used to talk about how likely or unlikely something is. They can be used to guess and make deductio ...
165 SPECULATION AND DEDUCTION ABOUT THE PAST FURTHER EXAMPLES “Must have” with a past participle is used to speculate about the ...
166 Modal verbs can be used to talk about possibility, or to express uncertainty. “Might” is the most common modal verb used for ...
167 As well as “might,” other modal verbs can be used to talk about something that possibly happened in the past. These construc ...
168 Articles Articles are short words which come before nouns to show whether they refer to a general or a specific object. Ther ...
169 “Some” replaces “a” or “an” in sentences with plural nouns. “Some” is replaced by “any ” to form questions and negatives. “S ...
170 THE DEFINITE ARTICLE The definite article “the” is used to talk about a specific person or thing that everyone understands. ...
171 FURTHER EXAMPLES FURTHER EXAMPLES Some adjectives can be used with the definite article to refer to a group or class of peop ...
172 The zero article is also used with some places and institutions when it is clear what their purpose is. THE ZERO ARTICLE An ...
173 The zero article is normally used with the name of a person. The definite article is used before a person’s name to differen ...
174 Articles overview Singular nouns must be used with an article. The definite article (“the”) or indefinite article (“a / an”) ...
175 The definite and indefinite articles are used in different situations, and this can depend on whether they are being used wi ...
176 “This,” “that,” “these,” and “those” can be used as determiners before a noun to specify which noun is being talked about. T ...
177 “THESE” AND “THOSE” AS DETERMINERS “These” and “those” are only used with plural nouns. “These” is used for things close by ...
178 The dog is close to you. “This” means the party is happening now. “That” means the party has already happened. The dog is fa ...
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