write doing sth还是write to do sth

write doing sth还是write to do sth use sth doing sth还是use sth to do sth after do sth.还是after doing sth. promise doing sth还是to do sth mind doing sth还是 to do sth have somebody do sth 还是doing sth? finish to do sth还是doing sth why not do sth 还是doing sth enough doing sth 还是 to do sth before doing sth还是do sth never doing sth 还是do sth? expect to do sth还是doing sth? important do sth 还是,important doing sth got an invitation to do sth 还是 on doing sth/in doing sth/of doing sth plan+to do sth.还是doing sth.还是 do sth. 是have difficulty doing sth还是have difficult doing sth? be worried doing sth 还是be worried about doing sth suggest mary's doing sth还是suggest mary doing sth?