| Case | Singular | Plural |
|---|---|---|
| nom | astrolog | astrologové |
| gen | astrologa | astrologů |
| dat | astrologovi, astrologu |
astrologům |
| acc | astrologa | astrology |
| voc | astrologu | astrologové |
| loc | astrologovi, astrologu |
astrolozích |
| instr | astrologem | astrology |