| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [adj] [prep] several years | 12 |
|
| 2 | [be] [adj] [prep] several years | 12 |
|
| 3 | [been] [adj] [prep] several years | 10 |
|
| 4 | been [adj] [prep] several years | 10 |
|
| 5 | [verb] [adj] [prep] several years | 7 |
|
| 6 | [adv] [adj] [prep] several years | 6 |
|
| 7 | [adv] [adj] [prep] several years | 6 |
|
| 8 | remain [adj] [prep] several years | 5 |
|
| 9 | [adj] [noun] [prep] several years | 59 |
|
| 10 | [adj] [noun sg] [prep] several years | 42 |
|
| 11 | [adj] [noun pl] [prep] several years | 14 |
|
| 12 | [adj] [prep] several years [prep] | 6 |
|
| 13 | [adj] [prep] several years [prep] | 6 |
|
