| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | happen [art] long [noun sg] ago | 13 |
|
| 2 | happen a long [noun sg] ago | 13 |
|
| 3 | happen [art] long time ago | 13 |
|
| 4 | happened [art] long [noun sg] ago | 8 |
|
| 5 | happened [art] long [noun sg] ago | 5 |
|
