کاربرد افعال مجهول به زمان‌ های مختلف در زبان انگلیسی

زمان افعال

معلوم یا اکتیو

مجهول

جمله معلوم

جمله مجهول

Simple present

keep

is kept

I keep the butter in the fridge.

The butter is kept in the fridge.

Present continuous

is keeping

is being kept

John is keeping my house tidy.

My house is being kept tidy.

Simple past

kept

was kept

Mary kept her schedule meticulously.

Mary’s schedule was kept meticulously.

Past continuous

was keeping

was being kept

The theater was keeping a seat for you.

A seat was being kept for you.

Present perfect

have kept

have been kept

I have kept all your old letters.

All your old letters have been kept.

Past perfect

had kept

had been kept

He had kept up his training regimen for a month.

His training regimen had been kept up for a month.

Simple Future

will keep

will be kept

Mark will keep the ficus.

The ficus will be kept.

Conditional Present

would keep

would be kept

If you told me, I would keep your secret.

If you told me, your secret would be kept.

Conditional Past

would have kept

would have been kept

I would have kept your bicycle here if you had left it with me.

Your bicycle would have been kept here if you had left it with me.

Present Infinitive

to keep

to be kept

She wants to keep the book.

The book wants to be kept.

Perfect Infinitive

to have kept

to have been kept

Judy was happy to have kept the puppy.

The puppy was happy to have been kept.

Present Participle & Gerund

keeping

being kept

I have a feeling that you may be keeping a secret.

I have a feeling that a secret may be being kept.

Perfect Participle

having kept

having been kept

Having kept the bird in a cage for so long, Jade wasn’t sure it could survive in the wild.

The bird, having been kept in a cage for so long, might not survive in the wild.