| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [verb] [that] [art] [noun] | 1271 |
|
| 2 | is [verb] [that] [art] [noun sg] | 997 |
|
| 3 | [be] [verb] [that] [art] system | 19 |
|
| 4 | be [verb] [that] [art] system | 19 |
|
| 5 | is [verb] [conj] [art] system | 13 |
|
| 6 | is [verb] [that] [art] system | 10 |
|
| 7 | [is] [verb] [that] [art] system | 8 |
|
