我希望我每个月能看一次电影的英语I with I can see a film——a——

I希望我每个月能看一次电影的英语表达可以是:

I wish I could watch a film once a month.

I'd like to watch a movie every month.

My hope is that I can see a film once per month.

如果要表达更加详尽一点,可以说:

It is my desire to view a cinema production on a monthly basis.

I aspire to indulge in a motion picture for entertainment purposes each calendar month.

Given an ideal set of circumstances, my intention would be to devote time to enjoying an example of the cinematic arts every four weeks or so.

Watching films is a hobby I would enjoy pursuing on a regular monthly schedule, if conditions permitted. 

Making time to consume an audiovisual work of fiction roughly every thirty days coincides with my preferences and interests.

在表达的时候可以使用以下词汇:

watch/see/view/catch - 看,观看

film/movie/motion picture/cinematic work/audiovisual production - 电影

once/per/every - 每,一次

month/calendar month/thirty days - 月,每个月

wish/would like/desire/aspire/hope - 希望

if conditions permitted/given ideal circumstances - 如果条件允许的话

hobby/interest/pursuit/preference - 兴趣爱好

indulge in - 沉溺于,投入

coincide with - 与...相符

roughly - 大约,约

这些表达和词汇可以让您详尽地表达出每个月看一部电影的愿望。如果您对以上回答还有任何疑问,请再次提出,我很乐意进一步解释和举例。