vivilovetu
那就要看说这句话的情况了:1)说“我迷路了”时正值困境:I'm lost. / I am lost/ I get lost (现在式)2) 说“我迷路了”时是说明过去了的情况,现在已经找到了地方:I was lost/ I got lost (过去式)

芳菲七月
I'm lost. 最简单的说法,或者说I've lost my way. 如果这件事发生在以前,那就是I lost my way when I was in Beijing. 或者 I was lost when I went to Rome.
曾在气院呆过
I'm lost. = I get lost. = I lose my way. = I miss my way. = I can't find my way. = I'm not able to find my way. = I go the wrong way.