| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [adv] happen [prep] | 68 |
|
| 2 | [vb -s] [adv] happened [prep] | 67 |
|
| 3 | has [adv] happen [prep] | 50 |
|
| 4 | [vb -s] [adv] happen to | 37 |
|
| 5 | [vb -s] [adv] happen to | 37 |
|
| 6 | [vb -s] ever happen [prep] | 20 |
|
| 7 | [vb -s] [adv] happen in | 18 |
|
| 8 | [vb -s] [adv] happen in | 18 |
|
| 9 | 's [adv] happen [prep] | 17 |
|
| 10 | [vb -s] already happen [prep] | 9 |
|
| 11 | [vb -s] never happen [prep] | 9 |
|
| 12 | [vb -s] actually happen [prep] | 6 |
|
