| Word | Category | Context | Structure | Meaning | Surface |
| I | |||||
| ... | |||||
| mine | |||||
| ... | |||||
| myself | |||||
| ... | |||||
| each other | |||||
| ... | |||||
| this | |||||
| that | |||||
| who | |||||
| ... | |||||
| some | |||||
| ... | |||||
| much | |||||
| ... | |||||
| all | |||||
| ... | |||||
| both | |||||
| ... | |||||
| no | |||||
| ... | |||||
| other | |||||
| ... | |||||
| another | |||||
| ... | |||||
| each | |||||
| ... |
Note that some pronoun-like `gaps' can be thought of as `invisible pronouns':
The man (...) I saw yesterday was here again today.
Who did you tell John Mary saw (...) yesterday?