过去时中 see是加do还是doing?

see/watch sb do/doing something ,那么是过去看见的呢,是see sb do 还是 see see后面是加什么[doing还是to do还是did,done] make see spend tell have need 等单词用法,关键是后面加to do 还是do还是doing prepare是加doing还是to do by后面是加do还是doing suggest是加doing还是should do? ask后面是加to do还是doing,还是do? see sb.后面是跟 do还是doing啊? 过去时after后加did还是doing? fear 后面是加doing?do?还是to do? Do you mind后面是加do还是doing? look forward to是加doing还是加do?