To grasp “ the present perfect ” and the irregular verbs ' past tense & past participle tense 掌握现在完成时态以及不规则动词的过去时态和过去分词。
Irregular verb dictionary for java enabled mobile phones . important : input lowercase only ! the program won ` t recognize verbs if there are capital letters in it 不规则动词字典，适于兼容java的手机。必须输入小写字母！不认大写的字母哦！
Now i am learning the grammatical item " past simple tense " . i feel it very difficult to remember the irregular forms of the irregular verbs . are there any knacks 问题10 ：我是个初中生，现在正在学过去时。可是在背不规则动词的过去式时，我觉得很难背出来。有什么窍门吗？
Question 10 : now i am learning the grammatical item " past simple tense " . i feel it very difficult to remember the irregular forms of the irregular verbs . are there any knacks 问题10 ：我是个初中生，现在正在学过去时。可是在背不规则动词的过去式时，我觉得很难背出来。有什么窍门吗？
Questions with past tense yesno and ; wh . statements and short answers using regular ( inviteinvited ) and irregular ( drive - drove ) verbs the sunset across the harbor was beautiful 过去时的问句，是不是，和wh -的陈述句和使用规则动词（邀请被邀请）和不规则动词（驾驶被驾驶）做简短的回答。
Short grammar and glossary of grammatical terms : to aid effective communication additional features : model letters ; a list of phonetic symbols used for german words ; guide to german pronunciation ; german irregular verbs ; games to develop dictionary skills 短期语法和词汇，语法术语：以援助有效沟通额外功能：示范信件;名单注音符号用德语词汇;指南德国发音;德语不规则动词;游戏开发字典技能。
