| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [vb pp] [prep] [adj] years | 359 |
|
| 2 | been [vb pp] [prep] several [noun] | 140 |
|
| 3 | been [vb pp] [prep] several [noun pl] | 125 |
|
| 4 | been [vb pp] [prep] [det] years | 91 |
|
| 5 | be [vb pp] [prep] several years | 24 |
|
| 6 | [be] [vb pp] [prep] several years | 24 |
|
| 7 | been [verb] [prep] several years | 20 |
|
| 8 | been [vb pp] [prep] several years | 6 |
|
| 9 | [been] [vb pp] [prep] several years | 6 |
|
| 10 | been [vb pp] [prep] several year | 6 |
|
| 11 | been [vb pp] [prep] several years | 6 |
|
