| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been for [noun] | 192 |
|
| 2 | be for century | 15 |
|
| 3 | [be] for century | 15 |
|
| 4 | [been] for century | 8 |
|
| 5 | been [prep] century | 8 |
|
