Present Simple /Present Continuous

The action happens regularly

The action is happening right now

We use ... for permanent states or situations

We use ... for fixed future arangmens

We use ... for general truth and laws of nature

always,usually,every day are trigger words of

am/is/are - the auxiliary verbs of

We use ... always ,constantly to express annoyance

now,at the moment,nowadays are the trigger words of

do/does are auxiliary verbs of

You always shout on me.