| I | suffer | 
|---|---|
| you | suffer | 
| he/she/it | suffers | 
| we | suffer | 
| you | suffer | 
| they | suffer | 
| I | suffered | 
|---|---|
| you | suffered | 
| he/she/it | suffered | 
| we | suffered | 
| you | suffered | 
| they | suffered | 
| I | have | suffered | 
|---|---|---|
| you | have | suffered | 
| he/she/it | has | suffered | 
| we | have | suffered | 
| you | have | suffered | 
| they | have | suffered | 
| I | had | suffered | 
|---|---|---|
| you | had | suffered | 
| he/she/it | had | suffered | 
| we | had | suffered | 
| you | had | suffered | 
| they | had | suffered | 
