21.4.1 exercise: Formation of adverbs based on adjectives

Many adverbs are build on the basis of the feminine form of the adjective by adding the ending -mente. If there is no feminine form, because the adjective ends on a consonante or e, the ending -mente is added to this neutral form.

Some adjectives, for instance baixo, alto, barato, rápido doesn't have an own form for the adverb. In this case there is no difference between the adverb and the adjective. (Adverbs like that exists in English as well: He runs fast. <=> A fast car.)

With other adjectives, for instance mau => mal, bom => bem the adverb has a completely different form.

In the following sentences the adjective is given and in the following sentences the corresponding adverb is used. Choose the right adverb.

provável = probable (the accent is left out in the adverb)
vai chover hoje.
Probably it will rain today.
aberto = open
Nesse ponto, sou de opinião que deveríamos abordar essa questão muito .
Concerning this point I believe that we should talk in all honesty about that.
dificil = difficult (here: no sooner)
O procedimento proposto é realizável e não contribui para a clareza.
The proposed procedure is not realizable and won't contribute anything to clarify the issue.
certo = sure
Este relatório será de enorme interesse nesse contexto.
This report is without any doubt of great interest in this context.
livre = free
O Grupo está autorizado a organizar o seu trabalho.
The group can organize its work freely.
diário = daily (no accent in the adverb)
Nem sempre será necessário alimentar os peixes .
It is not always necessary to feed the fishes daily.
mau = bad
Não devemos falar dos mortos.
We shouldn't say something bad about dead persons.
Se trabalharem bem, serão tratados.
If they work well, they will be treated well.

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