Using tentative verb forms

Statements that are too direct or over-positive can be softened as in these examples Statements that are too direct or over-positive can be softened as in these examples The investigations of the present work contribute to the model and filter components of LES The investigations of the present work are intended as a contribution to the model and filter components of LES. We propose a methodological approach. The use of equivalence factors for ecotoxic effect should be rejected It is better for...