Complex concessive structures

Objective: Express contrast and concession through compact formal structures.

Explanation

Advanced concessive patterns include much as, however plus an adjective, and fixed forms such as be that as it may.

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___ I admire the ambition of the project, its timetable is unrealistic.

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___ the evidence may appear, it does not establish a causal relationship.

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The circumstances were unusual. ___, the procedure should still have been followed.