| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been a feature | 38 |
|
| 2 | [verb] been a feature | 38 |
|
| 3 | [vb -s] been a feature | 21 |
|
| 4 | has been a feature | 21 |
|
| 5 | [adv] been a feature | 20 |
|
| 6 | [adv] been a feature | 19 |
|
| 7 | [vb past] been a feature | 11 |
|
| 8 | had been a feature | 11 |
|
| 9 | always been a feature | 10 |
|
| 10 | always been a feature | 10 |
|
| 11 | also been a feature | 5 |
|
| 12 | also been a feature | 5 |
|
| 13 | been a [adj] feature | 34 |
|
| 14 | been a [adj] feature | 34 |
|
| 15 | been a feature [prep] | 56 |
|
| 16 | been a feature [prep] | 56 |
|
| 17 | been a feature of | 51 |
|
| 18 | been a feature of | 51 |
|
