人称代词+动词原型
人称代词+过去分词
人称代词+固定时态标志+过去分词/现在分词/动词原型
固定时态标志（助动词）：
am is are was were——是
will would——将要
have has had——有
will be / would be
have been / has been / had been
will have been / would have been