The pronoun itself is old-fashioned and rarely used. The only modern instances you might hear it are in Received Pronunciation (as spoken by the British Royal Family). Ones” works when there are multiple things that we talk about as “one.” This can be used to ask about a list of things. The only time where the plural form “ones” is used is when we’re talking about an unspecified number of things or a group of objects. We never use “ones” as a pronoun, meaning there is no way for it to be possessive in nature. For this reason, “ones'” is never correct. Ones' could be anything from dice, to coins, to plastic counters. The idea is to teach children that things can be grouped into larger numbers to be more easily counted and organised. Why is it important to learn about the concept of ones and tens? Daisy: Well, I didn’t say ‘perfect’ exactly, but I’m sure he’ll like them. Wow, that market looks amazing. Lovely and colourful.

There are certain situations where “One” might be a name (though this will most likely only occur in fictional or creative writing). Still, in this case, “One” can be treated in the same way, where “One’s” is the correct possessive form. Ones’ Chairs made of wood (or wooden chairs) are as good as leather ones. ( ones made of leather is not good language) As it turns out, neither one is correct. It’s much better to simply say and write these and those. The extra wording isn’t needed because the “ones” are implied by the use of plural phrasing. If clarification is needed, it’s better to identify the objects in question.Take a noun for example. Some people say a dog=one, dogs=ones, the dog=the one=that, and the dogs=the ones=those. It's a rule of thumb, but what I found was that this is not always correct. There are exceptions. Sophie: Yeah, maybe ... he has got some brighter coloured clothes recently. OK then, I’ll get these for Uncle Bob and this shirt for Oliver and you’re getting a surprise! One's" is a contraction of "one is" or "one has." It is also the possessive of "one." Examples of these are:

Some people may argue that "those" refer to "specific ones", but in this case, it somehow refers to all of the chairs made of leather in general. Sophie: This one? Really? Do you think it’s Ollie’s style? It’s a bit loud, isn’t it? He usually likes darker colours ... and I’m not sure about the flowers.

The linked passage in Fowler mentions that " One does not like to have his word doubted" also existed in his time as a competing form. I don't know to what extent modern writers use his (or perhaps their) in sentences like this, but it's definitely less common than one's. I am wondering what the difference is between "ones", "the ones", "one", the one", "those", and "that"?

The singular and plural forms make sense. When talking about “one” as a number or a series or group of “ones,” we can use it in this way. One” works as a pronoun similar to “you” and “I.” However, we rarely use it in spoken or written English. Still, it comes with a possessive form that is correct should we need it. Chairs made of wood are as good as ones made of leather=Chairs made of wood are as good as those made of leather.The concept of tens and ones covered in this worksheet will help teach students the value of numbers. My main objection to OP's reasoning is that "ones" will not work alone to express generic plural (INCORRECT: *Chairs made of wood are as good as ones made of leather) unless it is premodified: I agree that "one" is indefinite in the singular while "the one" and "that" are definite in the singular. Daisy: Mmm ... I’ve never seen Uncle Bob in trousers like those, but they are great! Maybe he needs a bit of colour in his life?!