| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] [adv prt] [prep] the | 1137 |
|
| 2 | is necessary [verb] [prep] the | 51 |
|
| 3 | is necessary [verb] [adv prt] [prep] | 13 |
|
| 4 | is necessary [verb] [adv prt] the | 10 |
|
| 5 | necessary [verb] [adv prt] [prep] the | 10 |
|
