Breakdown of J'estime qu'il y a une dizaine de clients.
je
I
une
a / an (feminine)
il y a
there is / there are
de
of / from / any (in negative sentences) / about (concerning)
le client
the client / the customer
que
that (introducing a clause)
estimer
to estimate
la dizaine
the set of about ten (f)
Questions & Answers about J'estime qu'il y a une dizaine de clients.
Why does the spelling change from dix to dizaine?
Since there are multiple clients, why is it de clients instead of des clients?
Doesn't expressing an opinion usually require the subjunctive mood? Why do we use the indicative il y a here?
Verbs that declare a thought, belief, or estimation (like estimer, penser, or croire) take the regular indicative mood when used in the affirmative. You are stating what you believe to be a reality. You would only use the subjunctive if the verb were negative (je n'estime pas qu'il y ait...) or in a question, which introduces doubt.
Does une dizaine always mean "about ten"?
It frequently means "about ten," but it can also refer to a specific group of exactly ten things. However, in this sentence, the verb estimer (to estimate) makes it completely clear that the speaker is guessing the number, so it translates to "approximately ten."
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