基础差救星啊！巨巨巨清晰！ 🎈一般时态 现在：do 过去：did 将来：will do/shall do 过去将来：would do/should do 🎈进行时态 现在：am/is/are doing 过去：were/was doing 将来： will be doing/shall be doing 过去将来： would be doing/should be doing 🎈完成时态 现在：have done 过去：had done 将来： will have done/shall have done 过去将来： would have done/should have done 🎈完成进行时态 现在：have been doing 过去：had been doing 将来： will have been doing/shall have been doing 过去将来： would have been doing/should have been doing ……