  Inspired by the properties of an $n$-frame of gradients $(\nabla f_1, \ldots,
\nabla f_n)$ of a Morin map $f:M\rightarrow\mathbb{R}^n$, with $\dim M\geq n$,
we introduce the notion of Morin singularities in the context of singular
$n$-coframes and singular $n$-frames. We also study the singularities of
generic 1-forms associated to a Morin $n$-coframe, in order to generalize a
result of T. Fukuda [4, Theorem 1], which establishes a modulo 2 congruence
between the Euler characteristic of a compact manifold $M$ and the Euler
characteristics of the singular sets of a Morin map defined on $M$, to the case
of Morin $n$-coframes and Morin $n$-frames.
