| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] about a [noun] [prep] | 34 |
|
| 2 | [prep] about a [noun sg] [prep] | 34 |
|
| 3 | [prep] [prep] a month [prep] | 12 |
|
| 4 | [prep] [prep] a month [prep] | 12 |
|
| 5 | [prep] about a month [prep] | 7 |
|
| 6 | [prep] about a month [prep] | 7 |
|
| 7 | [prep] about a month [prep] | 7 |
|
| 8 | [prep] about [art] month [prep] | 7 |
|
| 9 | [prep] about a month [prep] | 7 |
|
