What is the mood of a verb used in subordinate clauses to show a doubtful or nonfactual condition?

The mood of a verb used in subordinate clauses to show a doubtful or nonfactual condition is called the subjunctive mood. It is used to express hypothetical situations, wishes, or recommendations. In English, the subjunctive is often indicated by changes in verb form, such as using "were" instead of "was."