| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] for century | 8 |
|
| 2 | [verb] [been] for century | 8 |
|
| 3 | [been] [verb] for century | 38 |
|
| 4 | [been] [vb pp] for century | 33 |
|
| 5 | [been] [adj] for century | 8 |
|
| 6 | [been] [adj] for century | 8 |
|
| 7 | [been] [v-ing] for century | 5 |
|
