Regular → verb + ed
Irregular → first collum

To be + verb + ing

1 - When things are always or generally true 2 - For regular habits or repeated actions

1 - An action happening right now at the moment of speaking 2 - To talk about something that is happening around the time of speaking but not necessarily at that exact moment

always, often, generally, normally, usually, sometimes, never
(Tijdsbepaling = present simple)

Now, right now, at the moment, still, currently, these days.