1.Im grateful for 我对特别感激
Im grateful for your timely help.
非常感谢你及时的帮助 [timely adj.及时的]。
2.I am planning to 我打算
I am planning to travel around China.
我打算环游中国。
3.I am very pleased to have this opportunity to 我很高兴有机会
I am very pleased to have this opportunity to stand here and give you a speech.
我很高兴有机会站在这里为你们演讲。
4.As long as只要
As long as we work together, we can make the impossible possible.
只要我们一起努力，我们就能把不可能变为可能。
5.But for若不是因为。/如果没有。
But for your generous help, we couldnt have finished the work so soon.
如果没有你的鼎力相助，我们不可能这么快完成工作的。