| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | happen [art] long [noun sg] ago | 13 |
|
| 2 | happen [art] [adj] time ago | 13 |
|
| 3 | happen a [adj] [noun sg] ago | 13 |
|
| 4 | happen [art] [adj] [noun sg] ago | 13 |
|
| 5 | happened [art] [adj] [noun sg] ago | 8 |
|
| 6 | happened [art] [adj] [noun sg] ago | 5 |
|
