| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb base] been [prep] [noun] for | 109 |
|
| 2 | [verb] been [prep] existence for | 36 |
|
| 3 | [vb base] been [prep] existence [prep] | 13 |
|
| 4 | [vb base] [be] [prep] existence for | 10 |
|
| 5 | [vb base] be [prep] existence for | 10 |
|
| 6 | [vb base] [been] [prep] existence for | 10 |
|
