| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been a [adj] factor | 78 |
|
| 2 | [verb] been a [adj] factor | 78 |
|
| 3 | [vb -s] been a [adj] factor | 35 |
|
| 4 | has been a [adj] factor | 35 |
|
| 5 | [vb infin] been a [adj] factor | 14 |
|
| 6 | have been a [adj] factor | 14 |
|
| 7 | had been a [adj] factor | 13 |
|
| 8 | [vb past] been a [adj] factor | 13 |
|
| 9 | [to-vb] been a [adj] factor | 10 |
|
| 10 | to have been a [adj] factor | 10 |
|
| 11 | [adv] been a [adj] factor | 5 |
|
| 12 | [adv] been a [adj] factor | 5 |
|
| 13 | been a [adj] [adj] factor | 7 |
|
| 14 | been a [adj] [adj] factor | 7 |
|
| 15 | been a [adj] [adj] factor | 7 |
|
| 16 | been a [adj] [adj] factor | 7 |
|
| 17 | been a [adj] factor [prep] | 67 |
|
| 18 | been a [adj] factor [prep] | 67 |
|
| 19 | been a [adj] factor in | 60 |
|
| 20 | been a [adj] factor in | 60 |
|
