| 1 | Under certain conditions, non-nominal words can also act as agents. | |
| 2 | Prototypical agent and recipient are animate, while the inanimate can also be fused in the slot. | |
| 3 | Constrained by the morphological rules, the agent of these verbs is suppressed, leaving the position empty for the external argument. | |
| 4 | The two central senses are"agent causes recipient to receive patient"and"agent gets patient". | |
| 5 | Apology is, in communicative activities, an illocutionary act of remedy and a social act of politeness. |