| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be necessary [subord] the [noun sg] | 56 |
|
| 2 | [be] necessary if the [noun sg] | 27 |
|
| 3 | [is] necessary [subord] the [noun sg] | 23 |
|
| 4 | is necessary [subord] the [noun sg] | 22 |
|
| 5 | [be] necessary because the [noun sg] | 16 |
|
| 6 | be necessary [subord] the [noun sg] | 13 |
|
| 7 | [be] necessary [subord] the [noun sg] | 13 |
|
| 8 | [was/were] necessary [subord] the [noun sg] | 10 |
|
| 9 | was necessary [subord] the [noun sg] | 9 |
|
| 10 | [am/are] necessary [subord] the [noun sg] | 7 |
|
| 11 | are necessary [subord] the [noun sg] | 7 |
|
