| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [verb] [adv] a | 325 |
|
| 2 | it [vb -s] [adv] a | 176 |
|
| 3 | it require [adv] a | 9 |
|
| 4 | [pron] requires [adv] a | 9 |
|
| 5 | it requires [adv] [art] | 9 |
|
| 6 | it requires [adv] a | 7 |
|
