1. Examples = impossible, unimaginable
Root = a, an, im, in, non, un
Meaning = not, without
Examples = impossible, unimaginable

2. Root = ant, anti, contra, contro
Meaning = against, opposite
Examples = contradict, antitrust

3. Meaning = government, rule
Root = -crat, crac
Meaning = government, rule
Examples = democracy, autocrat

4. Examples = hyperactive, supervisor
Root = hyper, super, sur
Meaning = over, above
Examples = hyperactive, supervisor

5. Examples = submarine, hypocrisy
Root = hypo, sub
Meaning = under, below
Examples = submarine, hypocrisy