| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb infin] [is] [verb] [prep] [art] [noun] | 47 |
|
| 2 | [verb] [is] [to-vb] [prep] [art] [noun] | 44 |
|
| 3 | [vb infin] [be] [to-vb] [prep] [art] [noun] | 16 |
|
| 4 | [vb infin] [is] [to-vb] [prep] [art] [noun] | 11 |
|
