Was Tensed or Tense?

When you want to say that you were/are NERVOUS during a particular time, use TENSE, not TENSED. TENSE is an ADJECTIVE that means "showing nervousness." Examples: "Everytime I am asked to give a talk to our company's clients, I feel very TENSE."

What tense to use with was?

When to use were

Whereas was is the singular past tense of to be, were is used for both the third person plural past tense (they and we) and the second person past tense (you). In the past indicative, were acts similar to was. “They were at the store,” you could say, for example.

Was a tense situation?

A tense situation or period of time is one that makes people anxious, because they do not know what is going to happen next.