| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has happened [prep] the [noun sg] | 63 |
|
| 2 | happened [prep] the [num ord] [noun sg] | 19 |
|
| 3 | has happened [prep] the [num ord] | 15 |
|
| 4 | has [prep] the [num ord] [noun sg] | 14 |
|
