present progressive

subject + tobe form +verb(ing) +complement

l am taking my final exam

he/she/it is sweeping the floor at the moment

you/we/they are giving me a headache


negative form

subject + tobe form + not +verb(ing) + complement

l am not working on that project now



interrogative form

to be + subject + verb(ing) + complement + ?

am l marking myself clear?