| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | must [verb] at least [adj] | 80 |
|
| 2 | [vb mod] take at least [adj] | 42 |
|
| 3 | [modal v] take at least [adj] | 42 |
|
| 4 | must take at least [adj] | 7 |
|
| 5 | must take at [adv] [adj] | 7 |
|
| 6 | must take [prep] least [adj] | 7 |
|
| 7 | must take at least [adj] | 7 |
|
| 8 | must take [prep] least [adj] | 7 |
|
