in the PONS Dictionary
call upon VB intr
1. call upon (appeal to):
ˈput-upon ADJ inf
turn upon VB intr
turn upon PHRVB turn on
See also
I. turn on VB trans
1. turn on (switch on):
2. turn on inf (excite):
3. turn on (start to use):
II. turn on VB intr
4. turn on (be dependent on):
| I | call upon |
|---|---|
| you | call upon |
| he/she/it | calls upon |
| we | call upon |
| you | call upon |
| they | call upon |
| I | called upon |
|---|---|
| you | called upon |
| he/she/it | called upon |
| we | called upon |
| you | called upon |
| they | called upon |
| I | have | called upon |
|---|---|---|
| you | have | called upon |
| he/she/it | has | called upon |
| we | have | called upon |
| you | have | called upon |
| they | have | called upon |
| I | had | called upon |
|---|---|---|
| you | had | called upon |
| he/she/it | had | called upon |
| we | had | called upon |
| you | had | called upon |
| they | had | called upon |