| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | require [to-vb] [art] [noun] | 819 |
|
| 2 | [am/are] [to-vb] [art] [noun] | 402 |
|
| 3 | [am/are] require [to-vb] [art] | 159 |
|
| 4 | [am/are] require [to-vb] [noun] | 80 |
|
