| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] fall back [prep] the [adj] | 6 |
|
| 2 | [modal v] fall back [prep] the [adj] | 6 |
|
| 3 | fall back [prep] the [adj] [noun] | 6 |
|
| 4 | fall back [prep] the [adj] [noun sg] | 6 |
|
