The Imperfect Tense (a past tense)
amo=I love sum=I am 
singular singular
ama-bam I was loving er-am I was
ama-bas you (sing) were loving er-as you (sing) were
ama-bat he, she, it  was loving er-at he, she, it was
plural plural
ama-bamus we were loving er-amus we were
ama-batis you (plural) were loving er-atis you (plural) were
ama-bant they were loving er-ant they were