We study regularity of solutions
u
u
to
∂
¯
u
=
f
\overline \partial u=f
on a relatively compact
C
2
C^2
domain
D
D
in a complex manifold of dimension
n
n
, where
f
f
is a
(
0
,
q
)
(0,q)
form. Assume that there are either
(
q
+
1
)
(q+1)
negative or
(
n
−
q
)
(n-q)
positive Levi eigenvalues at each point of boundary
∂
D
\partial D
. Under the necessary condition that a locally
L
2
L^2
solution exists on the domain, we show the existence of the solutions on the closure of the domain that gain
1
/
2
1/2
derivative when
q
=
1
q=1
and
f
f
is in the Hölder–Zygmund space
Λ
r
(
D
)
\Lambda ^r( D)
with
r
>
1
r>1
. For
q
>
1
q>1
, the same regularity for the solutions is achieved when
∂
D
\partial D
is either sufficiently smooth or of
(
n
−
q
)
(n-q)
positive Levi eigenvalues everywhere on
∂
D
\partial D
.