| I | puzzle over | |
|---|---|---|
| you | puzzle over | |
| he/she/it | puzzles over | |
| we | puzzle over | |
| you | puzzle over | |
| they | puzzle over |
| I | puzzled over | |
|---|---|---|
| you | puzzled over | |
| he/she/it | puzzled over | |
| we | puzzled over | |
| you | puzzled over | |
| they | puzzled over |
| I | have | puzzled over | |
|---|---|---|---|
| you | have | puzzled over | |
| he/she/it | has | puzzled over | |
| we | have | puzzled over | |
| you | have | puzzled over | |
| they | have | puzzled over |
| I | had | puzzled over | |
|---|---|---|---|
| you | had | puzzled over | |
| he/she/it | had | puzzled over | |
| we | had | puzzled over | |
| you | had | puzzled over | |
| they | had | puzzled over |