Bodies are at ease, not tense.

身体放松，不紧张。

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Gestures should be relaxed, not tense or rigid.

手势要轻松，不要紧张或僵硬。

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Do not tense your shoulders as you do this.

当你做这个动作时，不要收紧肩胛骨。

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So can be changed slightly, depending on tense, past, present or future as well as whether or not you want to ask a question.

因此这个句型要根据不同的时态，如过去时、现在时和将来时，作出一点调整；另外也会根据是否是问句而略有不同。

There is 课堂 - SpeakingMax英语口语达人

The spring was not tense at all.

FORBES: Magazine Article

The nationalist Garvaghy Road Residents' Coalition welcomed the ruling, but unionist representatives have said the decision banning the parade from the Garvaghy Road for the third year had not helped the tense situation in Portadown.

BBC: Portadown District Orange Lodge

But the day was not without its tense moments as minnows Canada came within two points of a major upset in the quarter-finals, eventually succumbing 21-19 to a New Zealand side frantic to keep the beefy Kanuks out.

BBC: All Blacks storm Dubai