| I | sieve | 
|---|---|
| you | sieve | 
| he/she/it | sieves | 
| we | sieve | 
| you | sieve | 
| they | sieve | 
| I | sieved | 
|---|---|
| you | sieved | 
| he/she/it | sieved | 
| we | sieved | 
| you | sieved | 
| they | sieved | 
| I | have | sieved | 
|---|---|---|
| you | have | sieved | 
| he/she/it | has | sieved | 
| we | have | sieved | 
| you | have | sieved | 
| they | have | sieved | 
| I | had | sieved | 
|---|---|---|
| you | had | sieved | 
| he/she/it | had | sieved | 
| we | had | sieved | 
| you | had | sieved | 
| they | had | sieved | 
