you can put the verb in the negative by using 'not' or use never
be in the present tense: am/is /are you add not to give negative
be in the past tense: was/were you add not to give negative
now or at present: i'mnot scared/ i'mnot afraid/i'm never scared of you.
in the past: i wasn't afraid/ i wasn't scared/ i was never afraid when i was living with my family
i hope i understood your question correctly