| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [conj] it is necessary | 263 |
|
| 2 | [noun] it is necessary | 223 |
|
| 3 | [noun sg] it is necessary | 151 |
|
| 4 | [subord] it is necessary | 130 |
|
| 5 | [adv] it is necessary | 110 |
|
| 6 | [adv] it is necessary | 79 |
|
| 7 | [coord] it is necessary | 68 |
|
| 8 | that it is necessary | 65 |
|
| 9 | that it is necessary | 65 |
|
| 10 | [that] it is necessary | 65 |
|
| 11 | [noun pl] it is necessary | 63 |
|
| 12 | [verb] it is necessary | 60 |
|
| 13 | [adj] it is necessary | 38 |
|
| 14 | but it is necessary | 34 |
|
| 15 | but it is necessary | 34 |
|
| 16 | and it is necessary | 33 |
|
| 17 | and it is necessary | 33 |
|
| 18 | if it is necessary | 30 |
|
| 19 | if it is necessary | 30 |
|
| 20 | [Wh adv] it is necessary | 28 |
|
| 21 | where it is necessary | 27 |
|
| 22 | where it is necessary | 27 |
|
| 23 | [vb base] it is necessary | 24 |
|
| 24 | [pron] it is necessary | 20 |
|
| 25 | when it is necessary | 20 |
|
| 26 | when it is necessary | 20 |
|
| 27 | [det] it is necessary | 17 |
|
| 28 | why it is necessary | 16 |
|
| 29 | why it is necessary | 16 |
|
| 30 | [Wh det] it is necessary | 13 |
|
