| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] [to-vb] been [art] [adj] factor | 10 |
|
| 2 | [vb -s] [to-vb] been [art] [adj] factor | 6 |
|
| 3 | appear [to-vb] been [art] [adj] factor | 5 |
|
| 4 | [to-vb] been [art] [adj] factor [prep] | 11 |
|
| 5 | [to-vb] been [art] [adj] factor [prep] | 11 |
|
| 6 | [to-vb] been [art] [adj] factor in | 8 |
|
| 7 | [to-vb] been [art] [adj] factor in | 8 |
|
