Formal Subordinating Conjunctions (C1 Grammar)

Formal subordinating conjunctions connect clauses in academic, legal, and professional writing. These conjunctions express concession, cause, extent, and preventive purpose with greater precision than everyday connectors.

Quick tip: Remember: 'albeit' = although (+ adjective/phrase), 'in that' = because/in the sense that, 'inasmuch as' = since/because, 'insofar as' = to the extent that, 'lest' = to prevent (+ subjunctive), 'notwithstanding' = despite.

Concessive conjunctions

Use albeit and notwithstanding to express 'although' or 'despite' in formal contexts.

Causal/Explanatory conjunctions

Use in that and inasmuch as to explain reasons or how something is true.

Extent conjunctions

Use insofar as to express 'to the extent that' - limiting how far something applies.

Preventive purpose

Use lest to express 'in order to prevent' or 'for fear that'. Note: lest takes the subjunctive (base form).

Common mistakes

Practise it

These conjunctions appear frequently in academic papers, legal documents, and formal reports. Practice by reading professional texts and identifying these connectors, then use them in your own formal writing.