| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | an average of [adj] [noun] [art] | 39 |
|
| 2 | an average [prep] [num] [noun] [art] | 39 |
|
| 3 | an average [prep] [adj] [noun] [art] | 39 |
|
| 4 | an average of [adj] [noun] [art] | 39 |
|
| 5 | an average [prep] [adj] [noun pl] [art] | 34 |
|
| 6 | an average [prep] [adj] [noun] a | 29 |
|
| 7 | an average [prep] [adj] hours [art] | 8 |
|
| 8 | an average [prep] [adj] hour [art] | 8 |
|
