They went to plant trees 改为现在时
问题描述：
They went to plant trees 改为现在时
答
They were going to to plant trees.
答
They are going to plant trees
They go to plant trees
答
你说的太笼统了.现在时包括很多呢.现在进行时：They are going to plant trees.一般现在时：They go to plant trees.现在完成时：They have gone to plant trees.或者 They have been to plant trees....
答
They are planting trees.是现在进行时，他们正在植树
They are going to plant trees是将来时，他们要去植树