| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it does [verb] | 893 |
|
| 2 | [conj] it does [vb infin] | 881 |
|
| 3 | [conj] it do happen | 41 |
|
| 4 | [conj] it [verb] happen | 41 |
|
| 5 | [conj] [pron] does happen | 38 |
|
| 6 | [conj] it [vb -s] happen | 29 |
|
| 7 | [conj] it does happen | 29 |
|
