| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb pp] on 31 [noun prp] | 35 |
|
| 2 | [vb pp] [prep] 31 march | 21 |
|
| 3 | [vb pp] by 31 [noun prp] | 14 |
|
| 4 | [vb pp] [prep] 31 december | 12 |
|
| 5 | [vb pp] [prep] 31 october | 9 |
|
| 6 | [vb pp] [prep] 31 july | 8 |
|
| 7 | [vb pp] [prep] 31 august | 8 |
|
| 8 | [vb pp] before 31 [noun prp] | 8 |
|
| 9 | [vb pp] [prep] 31 may | 7 |
|
| 10 | made [prep] 31 [noun prp] | 5 |
|
| 11 | ended [prep] 31 [noun prp] | 5 |
|
