| I | surface |
|---|---|
| you | surface |
| he/she/it | surfaces |
| we | surface |
| you | surface |
| they | surface |
| I | surfaced |
|---|---|
| you | surfaced |
| he/she/it | surfaced |
| we | surfaced |
| you | surfaced |
| they | surfaced |
| I | have | surfaced |
|---|---|---|
| you | have | surfaced |
| he/she/it | has | surfaced |
| we | have | surfaced |
| you | have | surfaced |
| they | have | surfaced |
| I | had | surfaced |
|---|---|---|
| you | had | surfaced |
| he/she/it | had | surfaced |
| we | had | surfaced |
| you | had | surfaced |
| they | had | surfaced |
单语范例（未经PONS编辑处理）
On the surface of a smoothly spherical, homogenous, non-rotating planet, the plumb bob picks out as vertical the radial direction.
en.wikipedia.org Yet the razzle-dazzle was all surface.
www.telegraph.co.uk On the surface the petrol engine gave a top speed of while the maximum speed submerged was.
en.wikipedia.org There are two short faults in the mid south that are marked on the surface by quartz.
en.wikipedia.org This provides a natural realisation of the osculating circle to a curve, and the curvature spheres of a surface.
en.wikipedia.org