A grammatical form (often a verb form) that refers to an event, transaction, occurrence, or object that happened (or had happened), or existed, at some time before now (the applicable reference time).
A grammatical form (often a verb form) that is used in a conditional expression to refer to an event, transaction, occurrence, or object that is hypothetical and often counterfactual.
Any of the forms of a verb which distinguish when an action or state of being occurs or exists.
The property of indicating the point in time at which an action or state of being occurs or exists.
An inflected form of a verb that indicates tense.
To apply a tense to.
To make tense.
To become tense.
Pulled taut, without any slack.
Showing signs of stress or strain; not relaxed.