| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | workers [Wh pn] are [adv] [verb] [prep] | 5 |
|
| 2 | workers [Wh pn] [am/are] [adv] [vb pp] [prep] | 5 |
|
| 3 | workers who [am/are] [adv] [verb] [prep] | 5 |
|
