"bear"后面可以跟 不定式或 动名词。具体使用哪种形式取决于句子的语境和所要表达的意思。

不定式：

当"bear"表示“忍受”、“承受”时，后面通常接不定式（to + 动词原形）。例如：

She can't bear to see you like that.

I can't bear you to shout in that way.

动名词：

当"bear"表示“携带”、“运送”、“忍受”时，后面可以直接接动名词（动词的-ing形式）。例如：

I can't bear having pat dogs in the house.

She can't bear being looked down upon by others.

此外，"bear"后面还可以接"that"从句，特别是在表示“忍受”或“经得起”的情况下。例如：

He could not bear that his friends should laugh at him.

总结：

"bear"后接不定式：She can't bear to see you like that.

"bear"后接动名词：I can't bear having pat dogs in the house.

"bear"后接that从句：He could not bear that his friends should laugh at him.

根据具体的语境选择合适的结构，可以使句子更加准确和生动。