Make it nominative plural:

urbs/ urbem

(a)  

Make it nominative plural:

gladius/ gladium

(a)  

Make it nominative plural:

ancilla/ ancillam

(a)  

Make it nominative plural:

ancilla/ ancillam

(a)  

Make it nominative plural:

amīcus/ amīcum

(a)  

Make it nominative plural:

senātor/ senātōrem

(a)  

Make it nominative plural:

equus/ equum

(a)  

Make it nominative plural:

clāmor/ clāmōrem

(a)  

Make it nominative plural:

amita/ amitam

(a)