Afer I had had lunch at a village pub.什么语法

Afer I had had lunch at a village pub.什么语法 I have had lunch.怎么变成过去完成时变成后是不是：I had had lunch. I have already had lunch 是什么结构 i have alreay had my lunch 【】you [ ]your lunch [ 英语翻译如 I have already had lunch.l have just had lunch.那l have had lunch.怎么译？ I had a big lunch with my family.对had a big lunch with 提问 After i had had lunch at a village pub,这里的两个had是什么用法 I have already had lunch.改为否定句. I have already had lunch.(变为一般疑问句） I had lunch at school yesterday改为一般疑问句 i've already had lunch中ve指的是什么? I have had lunch为什么用两个have? I had lunch at half past twelve 是不是主系表结构? I had noodies and chicken for lunch.的问句是什么 Have you had ( )Lunch?--yes,i had( )good dinner at my friend's house,too I had had lunch before they invited before they invited me for meal. After I had had lunch at a village pub.用的是什么语法 I have had lunch at school.对at school提问可不可以填where have you had lunch?