| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [vb pp] for | 3821 |
|
| 2 | [been] [vb pp] for century | 33 |
|
| 3 | have [vb pp] for century | 29 |
|
| 4 | have [been] for century | 8 |
|
