Example (1): I noticed the wind turbine seemed to go faster.
Example (2): It changes to higher speed.
Example (3): Pylons are even bigger than turbines.
Example (4): The pitch changes to make it more efficient.
‘more efficient’

Notes on comparisons

  • Add ‘er’ to a monosyllable adjective, such as ‘fast’ or ‘high’ to form the comparative, as in Examples (1) and (2),
    Double the last consonant, as in ‘big’, and add ‘er’, as in Example (3).
  • Add ‘more’ to longer adjectives such as ‘efficient’, as in Example (4).

Comparatives with ‘irregular’ adjectives

Example (5): This gets worse.
Example (6): Can you explain a bit more?
Example (7): That was better!


Use irregular comparative forms of adjectives:
‘bad’: ‘worse’ ‘worst’
‘much’: ‘more’ ‘most’
‘good’: ‘better’ ‘best’

Note on the use of comparisons

When comparing two or more persons or things that are different in size, quality, etc. you’ll have to use ‘than’ between them:

  • ‘Noise emissions will be no more than 42 dB …’
  • ‘The twin-bladed machine is more efficient than the three-bladed one.’