| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] [not/n't] [adv] [verb] | 921 |
|
| 2 | it [verb] [not/n't] [adv] [vb infin] | 805 |
|
| 3 | [pron] [verb] [not/n't] [adv] happen | 16 |
|
| 4 | it [verb] [not/n't] [adv] happen | 15 |
|
| 5 | [pers pn] [verb] [not/n't] [adv] happen | 15 |
|
| 6 | it [verb] [adv] [adv] happen | 12 |
|
| 7 | it [verb] [not/n't] [adv] happen | 11 |
|
| 8 | it [verb] [not/n't] [adv] happen | 11 |
|
