YOU SAID:

She is caught short and squats to relieve herself

INTO JAPANESE

彼女は急にしゃがんで用を足そうとする

BACK INTO ENGLISH

She suddenly squats down to relieve herself.

INTO JAPANESE

彼女は突然しゃがんで用を足そうとした。

BACK INTO ENGLISH

She suddenly squatted down to relieve herself.

INTO JAPANESE

彼女は突然しゃがんで用を足した。

BACK INTO ENGLISH

She suddenly squatted down to relieve herself.