"I couldn't start fixing the chair, because that would be melacha" (Glinert).
"And with every new gadget, a rabbi somewhere will ask: 'Will this involve a melacha?" (Glinert).
"The bochrim gave up trying to plan a chassan party when it became too big a Melocha for them" (Weiser).
"He's not a simple electrician; he knows the Melocha very well" (Weiser).
"At this point, the melachah of boreir, selecting, was performed, which involved removing heavier items, such as pebbles, that had remained with the kernels, now referred to as grain." (https://www.yeshiva.co/midrash/33955)
"He gives us the opportunity to emulate Him by instructing us to also do melacha and build a Mishkan, so that we can choose to have a relationship with Him." (source)
"The idea of being purposeful, in this context, implies that that the act in question, in order to be considered a “Melacha,” must have a positive purpose." (source)
“Just one more hour of this malokhe and I get to head home!” (source)