The 4 types of conjunctions in English grammar are: coordinating conjunctions, subordinating conjunctions, correlative conjunctions and adverbial conjunctions.
1. Cumulative (cumulative), coordinating conjunction that shows addition
2. Alternative, which shows the choice (between)
3. Adversative, which shows resistance (contrast)
4. Illatitive which means to show a conclusion
(coordinating conjunctions, subordinating conjunctions, correlative conjunctions and adverbial conjunctions)