 Solution

For one $SU(3)$ triplet and no gauge multiplet, the only nonzero $G$-invariant soft term is the universal scalar mass,An invariant bilinear does not exist, and the formal trilinear $A{ϵ}^{ijk}{\varphi }_i{\varphi }_j{\varphi }_k$ vanishes because the scalar fields commute. Thus the phrase “general soft terms” does not generate further interactions for the field content stated in the question.