​A base/root word is a word in its simplest form.  A

base/root word has nothing added to it.

​

Examples:

happy
do

write

roll

The prefix un- means not. 

  un + happy (contento) = unhappy (descontento)

  I am happy.

I am unhappy.

The prefix re- means again. 

  re + write (escribir) = rewrite (reescribir o escribir de nuevo)

  I write a sentence.

I rewrite the sentence.

The prefix dis- means opposite of. 

  dis + like (me gusta) = dislike (no me gusta)

  I like my birthday cake.

I dislike her birthday cake.

The prefix mis- means wrong,bad. 

  mis + behave (comportarse) = misbehave (comportarse mal)

  The students behaved in class, so the teacher gave them cookies.

The sister misbehaved at school, so Mom grounded her.

​dis-

​The prefix dis – means not or opposite.

–dishonest means not honest.

–dislike means the opposite of like.

​un-

​The prefix un – means not.

–Unhappy means not happy.

–Unkind means not kind.

​un-

​The prefix un – means not.

–Unhappy means not happy.

–Unkind means not kind.