| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | to be the toughest | 6 |
|
| 2 | [prep] be the toughest | 6 |
|
| 3 | [vb mod] be the toughest | 6 |
|
| 4 | to be the toughest | 6 |
|
| 5 | [modal v] be the toughest | 6 |
|
| 6 | [prep] be the toughest | 6 |
|
| 7 | be the toughest [prep] | 5 |
|
| 8 | be the toughest [noun] | 5 |
|
| 9 | be the toughest [prep] | 5 |
|
| 10 | be the toughest [noun sg] | 5 |
|
