| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could happen | 170 |
|
| 2 | [pron] could happen | 170 |
|
| 3 | [pers pn] could happen | 94 |
|
| 4 | it could happen | 91 |
|
| 5 | it could happen | 91 |
|
| 6 | [Wh det] could happen | 44 |
|
| 7 | what could happen | 38 |
|
| 8 | what could happen | 38 |
|
| 9 | [indef pn] could happen | 32 |
|
| 10 | anything could happen | 29 |
|
| 11 | anything could happen | 29 |
|
| 12 | which could happen | 6 |
|
| 13 | which could happen | 6 |
|
