| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] been a [adj] | 4638 |
|
| 2 | been a [adj] factor | 69 |
|
| 3 | [verb] a [adj] factor | 65 |
|
| 4 | [verb] been a factor | 31 |
|
| 5 | [verb] been [adj] factor | 10 |
|
