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Prefixes B2
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associated
disassociated
Oops!
Okay!
orientated
disorientated
Oops!
Okay!
important
unimportant
Oops!
Okay!
secure
insecure
Oops!
Okay!
helpful
unhelpful
Oops!
Okay!
relevant
irrelevant
Oops!
Okay!
sympathetic
unsympathetic
Oops!
Okay!
responsible
Irresponsible
Oops!
Okay!
conscious
Unconscious
Oops!
Okay!
believing
unbelieving
Oops!
Okay!
possible
Impossible
Oops!
Okay!
questioning
unquestioning
Oops!
Okay!
reliable
Unreliable
Oops!
Okay!
polite
impolite
Oops!
Okay!
assemble
disassemble
Oops!
Okay!
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