| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] and may be [verb] [prep] | 78 |
|
| 2 | lifespan and [modal v] be [verb] [prep] | 9 |
|
| 3 | lifespan and [vb mod] be [verb] [prep] | 9 |
|
| 4 | lifespan and may [be] [verb] [prep] | 6 |
|
| 5 | lifespan and may [be] [verb] [prep] | 6 |
|
| 6 | lifespan and may be [verb] [prep] | 6 |
|
| 7 | lifespan and may be [verb] [prep] | 6 |
|
| 8 | lifespan and may be [verb] [prep] | 6 |
|
| 9 | lifespan [conj] may be [verb] [prep] | 6 |
|
