Adverbs of Frequency

I always walk to work.

They usually arrive late.

My father often forgets his birthday.

I always eat breakfast.

They sometimes take a taxi.

Subject + to be + adverb + main verb

I am always late for work.

He is often ready for work at 6 am.

We aren’t usually hungry in the morning.

The adverb of frequency goes between the auxiliary and the main verb:

We don’t usually watch TV after lunch.

They can’t always wait for you.

Hourly, daily, weekly, monthly, yearly

Every second, once a minute, twice a year

Once, twice, once or twice, three times

Most companies pay taxes yearly.

The manager checks the toilets every hour.

The directors meet weekly to review progress.