| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be necessary [subord] the [noun sg] | 56 |
|
| 2 | be necessary if [art] [noun sg] | 27 |
|
| 3 | is necessary [subord] [art] [noun sg] | 24 |
|
| 4 | be necessary because [art] [noun sg] | 17 |
|
| 5 | be necessary [subord] [art] [noun sg] | 16 |
|
| 6 | was necessary [subord] [art] [noun sg] | 9 |
|
| 7 | be necessary before [art] [noun sg] | 8 |
|
| 8 | are necessary [subord] [art] [noun sg] | 8 |
|
| 9 | be necessary [subord] a [noun sg] | 5 |
|
