| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] have occurred | 238 |
|
| 2 | [Wh det] [verb] occurred | 160 |
|
| 3 | which [verb] occurred | 109 |
|
| 4 | which [verb] occurred | 109 |
|
| 5 | [pron] [vb past] occurred | 101 |
|
| 6 | [pron] had occurred | 101 |
|
| 7 | [pron] [vb -s] occurred | 72 |
|
| 8 | [pers pn] [verb] occurred | 70 |
|
| 9 | [pron] has occurred | 70 |
|
| 10 | [pron] [vb base] occurred | 62 |
|
| 11 | it [verb] occurred | 60 |
|
| 12 | it [verb] occurred | 60 |
|
| 13 | [pron] have occurred | 60 |
|
| 14 | what [verb] occurred | 50 |
|
| 15 | what [verb] occurred | 50 |
|
| 16 | they [verb] occurred | 8 |
|
| 17 | they [verb] occurred | 7 |
|
| 18 | [indef pn] [verb] occurred | 7 |
|
