Simple present tense转换Simple past tense

Simple present tense转换Simple past tense 用present perfect tense ,simple past tense , The simple present tense simple present tense Simple past tense Past Simple Tense simple past&past continue tense 希望学会英语的Tense.（e.g.Simple Past Tense,Present Perfecet Tense…… Simple Present Tense(简单现在式) 英语Simple present tense问题 talking 的simple past tense simple past tense 是什麼意思?