I. chair [tʃeə] 名词
| I | chair | 
|---|---|
| you | chair | 
| he/she/it | chairs | 
| we | chair | 
| you | chair | 
| they | chair | 
| I | chaired | 
|---|---|
| you | chaired | 
| he/she/it | chaired | 
| we | chaired | 
| you | chaired | 
| they | chaired | 
| I | have | chaired | 
|---|---|---|
| you | have | chaired | 
| he/she/it | has | chaired | 
| we | have | chaired | 
| you | have | chaired | 
| they | have | chaired | 
| I | had | chaired | 
|---|---|---|
| you | had | chaired | 
| he/she/it | had | chaired | 
| we | had | chaired | 
| you | had | chaired | 
| they | had | chaired | 
