给出一篇短文，在其中标出所有的动词以及它们的时态。


The sun rises in the east and sets in the west. Yesterday, I walked to the park and saw a beautiful flower. I will be going to the beach tomorrow to watch the sunset. After that, I plan to build a sandcastle.
动词及时态：
rises (现在时) 
walked (过去时)
saw (过去时)
will be going (将来进行时)
watch (将来时)
plan (现在时) 
build (现在时)