| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [prep] [adv] a month [prep] | 6 |
|
| 2 | [prep] [prep] [adv] a month [prep] | 6 |
|
| 3 | for [prep] [adv] a month [prep] | 5 |
|
| 4 | for [prep] [adv] a month [prep] | 5 |
|
| 5 | [prep] [adv] [adv] a month [prep] | 7 |
|
| 6 | [prep] least [adv] a month [prep] | 7 |
|
| 7 | [prep] least [adv] a month [prep] | 7 |
|
| 8 | [prep] [adv] [adv] a month [prep] | 7 |
|
| 9 | [prep] [prep] [adv] a month [prep] | 6 |
|
| 10 | [prep] at [adv] a month [prep] | 6 |
|
| 11 | [prep] at [adv] a month [prep] | 6 |
|
| 12 | [prep] [prep] [adv] a month [prep] | 6 |
|
| 13 | [prep] [adv] [adv] a month [prep] | 7 |
|
| 14 | [prep] [adv] [adv] a month [prep] | 7 |
|
| 15 | [prep] [adv] once a month [prep] | 6 |
|
| 16 | [prep] [adv] once a month [prep] | 6 |
|
| 17 | [prep] [adv] a month [prep] [noun] | 6 |
|
