this is train!(a train!)

[keannu]

While seeing my little son's Thomas Train puzzle, I unconsiously said "This is train".
I learned from a grammar material that no-article means a conceptual general idea of things, while articles indicate actual, real life things.
ex)Honey, this is train!(a train!)

But in this case, what would native speakers mostly say indicating a picture of train? Train or a train? It seems the boundary is really ambiguous. Even if you indicate a real train and try to say the concept of train, then could you say. "This is train"?

Article is a really difficult area for Koreans as Korean language doesn't have an indefinite article even for actual things, which might be confusing for English speakers in return.

[emsr2d2]

You need the article. "Train" is not a concept. "Trains" are things. If you are actually looking at or pointing at a train, at a photograph of a train, a painting of a train etc, then you need to say "This is a train". If there is more than one train then "These are trains".

We only omit the article with actual concepts (ie things that do not physically exist or thing that you can't touch): "This is life" or uncountable nouns: "This is snow."

[keannu]

You need the article. "Train" is not a concept. "Trains" are things. If you are actually looking at or pointing at a train, at a photograph of a train, a painting of a train etc, then you need to say "This is a train". If there is more than one train then "These are trains".

We only omit the article with actual concepts (ie things that do not physically exist or thing that you can't touch): "This is life" or uncountable nouns: "This is snow."

Thanks a lot, but It's really confusing for Koreans. I think even though singular nouns exist as the original form, they are rarely used, but plural forms and articled ones are mostly used. Then, when do you use the original singular form?

For example, you would say "Trains should be safe" not "Train should be safe"
I guess maybe singular forms are used for word definition such as "Train is a vehicle that people ride for a long-distance trip.", I again doubt this should be replaced by "trains".

[Gillnetter]

While seeing my little son's Thomas Train puzzle, I unconsiously said "This is train".
I learned from a grammar material that no-article means a conceptual general idea of things, while articles indicate actual, real life things. Not necessarily. Determine if the noun is countable (there is a limited number) or uncountable (there is no way to count all of these nouns)

I had a dream (countable, one dream). It was an ideal dream. It was the best dream. Dreams (uncountable) occur when you sleep.
This is a train.(a specific train - countable)
I need air. (air is uncountable)
I want water. (water is uncountable)
I want a drink of water. (I want a specific amount of water - countable)
I want a car. (car is countable)
I want transportation. (transportation is general in nature and is uncountable)
ex)Honey, this is train!(a train!)

But in this case, what would native speakers mostly say indicating a picture of train? Train or a train? (This, or that, is a train. The article "a" is required since you are referring to a specific train. You could say, "I like trains" - trains here would be uncountable) ) It seems the boundary is really ambiguous. Even if you indicate a real train and try to say the concept of train, then could you say. "This is train"? No.

Articles is are a really difficult area for Koreans as the Korean language doesn't have an indefinite article, even for actual things, which might be confusing for English speakers in return.

Gil

[keannu]

Gil

Millions of thanks, but could you answer my last question of when to use singular forms of countable nouns such as train, book, house,etc?

[Barb_D]

You can say "A train is..." or "Trains are..." but not "Train is..."

[keannu]

You can say "A train is..." or "Trains are..." but not "Train is..."

I understand I shouldn't say "train is...", so singular forms seem rarely used, but for which case are singluar forms used? such as word definition?(Is it word definition or word definitions?) It's also confusing, I understand that to generalize countable nouns, you should use plural forms and for uncountable nouns, singular forms,
But sometimes I can't decide if some word is countable or uncountable as I'm not a native speaker, I think it's the limitation of foreigners for article usage.(usage or usages??)

[5jj]

I understand I shouldn't say "train is...", so singular forms seem rarely used,

Nobody has said that. Look back at Barb's post # 6.

[keannu]

I remember reading that singular forms can be used in its wildest meaning as the general idea of nouns sometimes, but they don't seem to be used in normal cases even in word definition, so I'm just trying to verify it.

[5jj]

There are a couple of things that could be misunderstood here, I think:

Determine if the noun is countable (there is a limited number) or uncountable (there is no way to count all of these nouns)
I don't think it has anything to do with 'a limited number' . Whether a noun is (always or sometimes) used uncountably can seem rather arbitrary. Some nouns which are considered to be countable in other languages are generally uncountable in English, for example, 'experience' (knowledge and skill) and 'news', and, for many people, 'accommodation'.

Dreams (uncountable) occur when you sleep.
No. This is the plural form of 'dream'.

We can count money, but the noun 'money' is uncountable, except in certain specialised contexts.

The only way a learner can know whether a noun is used countably or uncountably is to check in a good dictionary.

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