| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | while at [art] [det] time [verb] | 224 |
|
| 2 | [conj] at [art] [det] time maintain | 12 |
|
| 3 | [subord] at [art] [det] time maintain | 9 |
|
| 4 | while at [art] [det] [noun] maintain | 7 |
|
| 5 | while at [art] [det] [noun sg] maintain | 7 |
|
| 6 | while at [art] [det] time maintain | 7 |
|
| 7 | while at [art] [det] time maintain | 7 |
|
| 8 | while [prep] [art] [det] time maintain | 7 |
|
| 9 | while at [art] [adj] time maintain | 7 |
|
