一年やそこらで英語をマスターすることは不可能だ。の英語

It is impossible to master English in a year or so.

No matter how hard you may study English, you cannot master it in a year or so.

A foreign language can't be mastered in a year or so.

A foreign language cannot be mastered in a year or so.

It's impossible to learn English in a month.

It is impossible to master English in a short time.

However hard one may work, one cannot master a foreign language in a year or two.

English cannot be mastered overnight.

No matter how hard you may study, you cannot master English in a year or two.

However hard you may study, you can't master English in a year or so.

No matter how hard he may study, he cannot master English in a year or two.

It probably takes years of time to acquire English.

It takes years to master a foreign language.

Try as you may, you can't master English in a few months.

English isn't easy to master.

If one worked hard enough, one might master plain English in three years.

I'll have you all speaking fluent English within a year.

It's hard to master English.

To master English is hard.

To master English is difficult.

Mastering English is difficult.

If one would only work hard enough, one might master plain English in three years.

English isn't easy to master.

If you would only persevere in your efforts, you might master plain English in three years.

If he has studied English for ten years, he ought to be a pretty good scholar.

It's impossible to master English in a month or two.

One might master plain English in the three years.

I'll have you all speaking fluent English within a year.

It's quite difficult to master French in 2 or 3 years.

It is impossible to learn English in such a short time.