| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] [adv prt] at least [num] [noun pl] | 11 |
|
| 2 | [vb -s] [adv prt] at least [adj] [noun pl] | 11 |
|
| 3 | [vb -s] back at least [adj] [noun pl] | 6 |
|
| 4 | [vb -s] [adv prt] at least [adj] years | 5 |
|
