Concerning the forming of the condizionale a distinction is to be made between the verbs ending on -are, -ere at on side and the verbs ending on -ire on the other side. Besides that it follows the already well-known pattern. The endings of the infinitive are omitted and what is left is the radical and to the radical the corresponding endings were added. One could believe that the right form is comprarei (wrong!!) but the right form is comprerei. Special attention is therefore to be paid to the fact that with the verbs ending on -are the a become an e.
Condizionale I of the verbs ending on -are and -ere
comprare
to buy
compr
erei
eresti
erebbe
eremmo
ereste
erebbero
abitare
to live
abit
collaborare
to collaborate
collabor
mangiare
to eat
mang(i)
chiamare
to call
chiam
vendere
to sell
vend
cuocere
to cook
cuoc
sedere
to sit
sed
prendere
to take
prend
mettere
to put
mett
Condizionale I of the verbs ending on -ire
partire
to leave
part
irei
iresti
irebbe
iremmo
ireste
irebbero
apparire
to appear
appr
finire
to finish
fin
examles
comprare
io comprerei
ich würde kaufen
tu compreresti
du würdest kaufen
lui / lei comprerebbe
er / sie würde kaufen
noi compreremmo
wir würden kaufen
voi comprereste
ihr würdet kaufen
loro comprerebbero
sie würden kaufen
abitare
io abiterei
I would live
tu abiteresti
you would live
lui / lei abitereste
he / she / it would live
noi abiteremmo
we would live
voi abitereste
you would live
loro abiterebbero
they would ive
mangiare
io mangerei
I would eat
tu mangeresti
you would eat
lui / lei mangerebbe
he / she / it would eat
noi mangeremmo
we would eat
voi mangereste
you would eat
loro mangerebbero
they would eat
partire
io partirei
I would leave
tu partiresti
you would leave
lui / lei partirebbe
he / she / it would leave
noi partiremmo
we would leave
voi partireste
you would leave
loro partirebbero
they would leave
chiamare
io chiamerei
I would call
tu chiameresti
you would call
lui / lei chiamerebbe
he / she / it would call
noi chiameremmo
we would call
voi chiamereste
you would call
loro chiamerebbero
they would call
uscire
io uscirei
I would leave
tu usciresti
you would leave
lui / lei uscirebbe
he / she / it would leave
noi usciremmo
we would leave
voi uscireste
you would leave
loro uscirebbero
they would leave
We already know that the most irregular verbs are always the most frequent verbs, so we are not surprised that verbs like essere, volere, dovere, etc. are irregular as well in the condizionale.
