| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to be [verb] [prep] a [adj] | 1889 |
|
| 2 | to be [vb pp] [prep] a [adj] | 1805 |
|
| 3 | to be kept [prep] [art] [adj] | 18 |
|
| 4 | to be kept [prep] a [adj] | 12 |
|
| 5 | [prep] be kept [prep] a [adj] | 12 |
|
| 6 | [prep] be kept [prep] a [adj] | 12 |
|
| 7 | to be keep [prep] a [adj] | 12 |
|
| 8 | to [be] kept [prep] a [adj] | 12 |
|
| 9 | to be kept [prep] a [adj] | 12 |
|
