| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | should be [vb pp] to a | 126 |
|
| 2 | should be [vb pp] to a | 101 |
|
| 3 | should be kept to a | 26 |
|
| 4 | should be [vb pp] to an | 25 |
|
| 5 | should be left to a | 11 |
|
| 6 | should be referred to a | 10 |
|
| 7 | should be given to a | 6 |
|
| 8 | should be brought to a | 6 |
|
