important to do还是 imporyant doing

important to do还是 imporyant doing important do sth 还是,important doing sth important to do/doing sth. important ＋to do/for do/for doing,哪个正确? Should to do还是doing plan to do 还是doing attend to do 还是doing? remember+doing 还是+to do refuse to do还是doing to+什么 doing 还是do pretend doing 还是to do approach to doing还是do