| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] be worked [adv prt] by | 8 |
|
| 2 | to be worked [adv prt] by | 8 |
|
| 3 | to be worked [adv prt] by | 8 |
|
| 4 | [prep] be worked out by | 5 |
|
