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Hello Sad,
'a' and 'an' are the same indefinite article. The only difference is that 'an' is used before words that begin with a vowel sound (not with a vowel, but a vowel sound). This is a purely phonological change -- in other words, grammatically, 'a' and 'an' are the same word; we only say 'an' instead of 'a' because it's easier to pronounce due to the vowel sound that follows it. This is somewhat similar to changing 'y' to 'e' in Spanish -- 'padres y hijos' is not correct, instead it is 'padres e hijos' -- though grammatically 'y' is a conjunction, not a determiner. But 'y' changes to 'e' based on the first sound in the word after it, not based on grammar -- this is just like how 'a' changes to 'an' based on the first sound in the word after it, not based on grammar.
Articles are used in a noun phrase, i.e. they go with a noun (e.g. a safety feature). Sometimes there is an adjective between the article and the noun (e.g. an advanced safety feature), but the meaning of the article is the same and it modifies (tell us about) the noun, not the adjective.
Best wishes,
Kirk
The LearnEnglish Team
Hi Sad,
'an English teacher' is correct. My response below should hopefully help you understand this. If not, please see this page.
Best wishes,
Kirk
The LearnEnglish Team
Hello cbenglish,
The definite article is used here because 'threat' is not general but is defined. It is not any devastating conflict which is referenced but a specific devastating conflict: renewed conflict in the aforementioned Korean War.
Peter
The LearnEnglish Team
Hello cbenglish,
Yes, it is correct but you could also say 'a book nerd'.
The phrase 'quite the...' is used with many nouns, often in a humorous way:
Peter
The LearnEnglish Team
Hello Adill,
We normally ask that our users tell us what they think the answer is. Most of the time, no article is used here, though 'a' and 'the' are also possible. It really depends on the context and meaning, which are missing here.
All the best,
Kirk
The LearnEnglish Team
Hello Rox4090,
Have you tried reading the entries for 'indeed' and 'in fact' in different dictionaries? I've put links to the Cambridge Dictionary, but I'd also recommend trying others, e.g. Oxford, Merriam-Webster, Longman and Collins. The definitions should help and then the example sentences should also be really useful.
If you have any specific questions after reading through those, please let us know.
All the best,
Kirk
The LearnEnglish Team
Hello clover315,
Yes, you can say this without the definite article. However, the meaning changes:
Peter
The LearnEnglish Team
Hello Jaypee,
Adjectives and numbers come between determiners and quantifiers and the nouns they accompany:
Other than these the determiner or quantifier generally come immediately before the noun unless the word order is changed for rhetorical effect:
Peter
The LearnEnglish Team
Hello Jaypee,
As is explained above, determiners and quantifiers come at the head of a noun phrase. In other words, they modify nouns. They do not modify adverbs. Only adverbs modify other adverbs.
All the best,
Kirk
The LearnEnglish Team
Hello Zeeshan Siddiqii,
Yes, both sentences are grammatically correct and there is no difference in meaning.
Best wishes,
Peter
The LearnEnglish Team
Hello putridp9,
The determiner 'any' has two main meanings: one is to refer to indefinite quantities and the other means something like 'it doesn't matter which one'.
When 'any' is referring to indefinite quantities, we typically use it only in negative or interrogative sentences.
When 'any' means 'it doesn't matter which one' (which is the way it is used above), then it can be used in an affirmative sentences.
All the best,
Kirk
The LearnEnglish Team
Hello Ilariuccia,
In this context we would say 'for'. We could use 'on' when describing things that happened during the holiday:
Best wishes,
Peter
The LearnEnglish Team
Hello Marwa.Mohamed,
You can say '...since I was five' or '...since I was five years old' here. Neither is informal, though the second sounds a little more offical than the first in my view.
Your sentence is not incorrect but I think the present perfect continuous would be a more natural choice:
Best wishes,
Peter
The LearnEnglish Team
Hello Pavan Kaur,
Since the subject ('Task A and Task B') is plural, the verb should also be plural ('have'). Though I'd probably rephrase it slightly if I were writing it as 'Tasks A and B have to be done'.
All the best,
Kirk
The LearnEnglish Team