| I | rat |
|---|---|
| you | rat |
| he/she/it | rats |
| we | rat |
| you | rat |
| they | rat |
| I | ratted |
|---|---|
| you | ratted |
| he/she/it | ratted |
| we | ratted |
| you | ratted |
| they | ratted |
| I | have | ratted |
|---|---|---|
| you | have | ratted |
| he/she/it | has | ratted |
| we | have | ratted |
| you | have | ratted |
| they | have | ratted |
| I | had | ratted |
|---|---|---|
| you | had | ratted |
| he/she/it | had | ratted |
| we | had | ratted |
| you | had | ratted |
| they | had | ratted |
单语范例（未经PONS编辑处理）
Most recently she has expanded her work into the field of microstimulation mapping of the rat cortex.
en.wikipedia.org The handler may talk to their dog and encourage the dog to work the rat.
en.wikipedia.org However, more recent "in vivo" studies that involved performing microdialysis on rats showed a different trend.
en.wikipedia.org The rat urges him to sign and bites his wrist.
en.wikipedia.org Conservation efforts include the control of rats and macaques.
en.wikipedia.org