| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] [prep] about 15 | 34 |
|
| 2 | [noun sg] [prep] about 15 | 31 |
|
| 3 | [verb] [prep] about 15 | 25 |
|
| 4 | [vb base] [prep] about 15 | 9 |
|
| 5 | [vb pp] [prep] about 15 | 8 |
|
| 6 | [adj] [prep] about 15 | 7 |
|
| 7 | [adv] [prep] about 15 | 6 |
|
| 8 | [num] [prep] about 15 | 5 |
|
| 9 | [prep] about 15 [noun] | 47 |
|
| 10 | [prep] about 15 [noun pl] | 44 |
|
| 11 | [prep] about 15 minutes | 20 |
|
| 12 | [prep] about 15 minute | 20 |
|
| 13 | [prep] about 15 per | 19 |
|
| 14 | [prep] about 15 [no cls] | 19 |
|
| 15 | [prep] about 15 [unc] | 19 |
|
| 16 | [prep] about 15 per | 19 |
|
| 17 | [prep] about 15 year | 8 |
|
| 18 | [prep] about 15 years | 8 |
|
