*Conjunctions or conjunctions are task words whose function is connected between clauses, between sentences, and between paragraphs.
*Here are 3 examples of conjunctions :
1.Coordinating Conjunctions
 Example : For, And , Nor, But, Or, Yet, Soon
2.Subornating Conjunctions
 Example : Although, As, Before, Once, Though, Until, Whether.
3.Correlative Conjunctions  
Example : Both/And ; Either/or ; Just as/ so ; Neither/nor ; Not only/but also : Whether/or ; Hardly/when.