给定一个英文句子，将其中的动词时态改写成不同的形式（如将现在时改为过去时、将过去时改为将来时等）。
句子：She studies English every day.
She studied English yesterday. (将现在时改为过去时)
She will study English tomorrow. (将现在时改为将来时)
She has studied English for five years. (将现在时改为现在完成时)
She was studying English when I called her. (将现在时改为过去进行时)