push的现在分词是什么

　　例句：

　　He pushed against the rock with all his strength.

　　他用全力推那块石头。

　　We are continuing to push the business forward.

　　我们正在继续推进业务的发展。

　　The rise in interest rates will push prices up.

　　利率的提高将促使价格上扬。