01 Three Kinds of Connector
Sort the connector, then punctuate
Coordinating (FANBOYS) — for, and, nor, but, or, yet, so — join two ICs with a comma before: IC, and IC.  Subordinating — because, although, since, while, if, when, after — make a DC: DC, IC or IC DC.  Conjunctive adverbs — however, therefore, moreover, thus, instead, indeed — need a semicolon: IC; however, IC.
02 The Conjunctive-Adverb Trap
“however” is not “but”
Words like however, therefore, moreover, consequently feel like conjunctions but are adverbs. A comma in front of one joining two ICs is still a comma splice. Use a semicolon (or period) before, and a comma after: The plan was bold; however, it was underfunded.
Ready to practice?

14 questions for this session — 4 guided (label the structure first), 6 on the clock, and 4 in home practice. Every timed score feeds your sub-skill Error Log.

Open Session 03 Exercises →