Wǒ zàiyě shòubùliǎo le.
我再也受不了了。
I can't take it anymore.
Notes:
我(wǒ): I
再也……了(zàiyě...le): can't ... any more
受不了(shòubùliǎo): to stand, to endure
Example:
A:我再也受不了了。
Wǒ zàiyě shòubùliǎo le.
I can't take it anymore.
B:我也是!
Wǒ yě shì.
Me too!