A year before I believed we (can) stay for a long time是什么句式

A year before I believed we (can) stay for a long time是什么句式 It's （ ） day that we can't stay outside for a long time We ___(stay)on the farm for a long time. i can't stay for a long time in the mountains.THE thin makes Can you stay in China for a long time?语法是什么 I can can a can,for a long time. can we get together for a long time!什么意思 i think i can like you for a long time can I wait for you A long time? we work for a long time.for? stay a long time对还是stay for a long time对? stay a long time与stay for a long time有什么区别