| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a period | 408 |
|
| 2 | [verb] the period | 287 |
|
| 3 | [v-ing] [art] period | 155 |
|
| 4 | [vb past] [art] period | 121 |
|
| 5 | [vb -s] [art] period | 114 |
|
| 6 | [to-vb] [art] period | 97 |
|
| 7 | cover [art] period | 90 |
|
| 8 | [vb infin] [art] period | 78 |
|
| 9 | [vb base] [art] period | 74 |
|
| 10 | [vb pp] [art] period | 61 |
|
| 11 | have [art] period | 49 |
|
| 12 | follow [art] period | 43 |
|
| 13 | covering [art] period | 34 |
|
| 14 | enter [art] period | 30 |
|
| 15 | following [art] period | 24 |
|
| 16 | span [art] period | 21 |
|
| 17 | extend [art] period | 20 |
|
| 18 | spend [art] period | 18 |
|
| 19 | covers [art] period | 17 |
|
| 20 | mean [art] period | 15 |
|
| 21 | has [art] period | 15 |
|
| 22 | followed [art] period | 13 |
|
| 23 | to cover [art] period | 13 |
|
| 24 | means [art] period | 13 |
|
| 25 | face [art] period | 12 |
|
| 26 | undergo [art] period | 12 |
|
| 27 | undertake [art] period | 11 |
|
| 28 | entering [art] period | 10 |
|
| 29 | reduce [art] period | 10 |
|
| 30 | entered [art] period | 9 |
|
