Canvas tents have been around since before they started making tents out of nylon, polyester and other synthetic materials. I own two canvas tents myself, both a Kodiak and a Springbar.
From Wikipedia, the free encyclopedia. The conditional perfect is a grammatical construction that combines the conditional mood with perfect aspect. A typical example is the English would have written. The conditional perfect is used to refer to a hypothetical, usually counterfactual, event or circumstance placed in the past, contingent on some other circumstance (again normally counterfactual, and also usually placed in the past).
Negating both the hypothesis and conclusion of a conditional statement. For example, the inverse of If it is raining then the grass is wet is If it is not raining then the grass is not wet. Note: As in the example, a proposition may be true but its inverse may be false. See also. Contrapositive, converse, biconditional.