| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | require or [adv] require [prep] | 6 |
|
| 2 | required or [adv] [verb] [prep] | 6 |
|
| 3 | require or [adv] required [prep] | 6 |
|
| 4 | require or [adv] [verb] [prep] | 6 |
|
| 5 | require or [adv] [vb pp] [prep] | 6 |
|
| 6 | require or [adv] [verb] for | 6 |
|
| 7 | require or alternatively [verb] [prep] | 6 |
|
