inglese - numerals a/an and one
Numerals present little difficulty
The same form is used for adjectives and pronouns
six hundred people bought tickets
hundred of tourists come to this museum
one/ones must be added if the numeral is followed by an adjective alone
Have you got a big plate ?
no Would two small ones do ?
a/an and one (adjective)
when conunting or measuring time distance weight etc. we can use either a/an or one for the singular:
Lesson cost a/one pound an hour
The an before hour in this last expression is not replaceable by one
But in other types of statement a/an and one are not normally interchangeable because one + noun normally means one only/ not more than one and a/an does not mean this :
A shotgun is no good (it is the wrong sort of thing)
One shotgun is no good (I need two or three )
Special use of one
1) one (adjective/pronoun ) used with another /Others
one (boy) wanted to read another /Others wanted to watch tv
One day ha wanted his lunch early another day he wanted it late.
2) one can be used before day week month year summer winter etc
or before the name of the day or month to denote a particular time when something happened
one night the was a terrible storm
One winter the snow fell early
One day a telegram arrived
3) one day can also be used to mean "at some future date"
One day you'll be sorry you treated him so badly (some day would be possible)
a/an and one (pronoun)
one is the pronoun equivalent of a/an
Did you get a ticket? yes I managed to get one
The plural of one used in this way is some
Did you buy grapers ? yes I brought some
Did you hear the speech ? yes I heard it
Did you hear the speeches ? yes I heard them