| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [adv prt] by | 1215 |
|
| 2 | should be [vb pp] by | 1073 |
|
| 3 | should be [vb pp] [adv prt] | 901 |
|
| 4 | should be [adv prt] by | 12 |
|
