Comparisons of Adjectives

The question by James is - Sometimes we use '-est', but sometimes we just add a 'most' in front of the superlative adjective. And for the word 'fast', we use 'the fastest' to represent the superlative adjective, while the word 'beautiful' is represented by 'the most beautiful'. I would like to know when to use '-est' or 'most'.


I think that it depends on syllables. When the adjective has only one syllable, the comparative adjective should be added 'er', and the superlative one should be added 'est'. 

fast	faster	fastest
new	newer	newest
low	lower	low est

If the adjective has more than one syllable, and it ends with 'y', we get rid of 'y' and add 'ier. Similarly, we add 'iest' when it is superlative adjective.

pretty

prettier

prettiest

If the adjective has more than one syllable and it doesn't end with 'y', we add 'more' and 'most' for  comparative and superlative  adjective respectively.

beautiful	more beautiful	most beautiful
positive	more positive	most positive
comfortable	more comfortable	most comfortable

By Autumn