Udvidet datid dannes af en form af to be i datid + ing-form af verbet.
Eks.: Jeg var ved at slå græsplænen. I (mow) < was mowing > the lawn.
Eks.: De stod og snakkede. They (talk) < were talking >.
Eks.: Hun var i gang med at lave frokost. She (make) < was making > lunch.

Jeg sad og læste, da han ankom. I (read) when he arrived.
Det regnede, da hun tog afsted. It (rain) when she left.
Medens jeg lå og sov, gik hun og arbejdede. While I (sleep) she (work) .
Da John ringede, sad jeg og så fjernsyn. When John called, I (watch) TV.
Postbudet kom, medens jeg var i færd med at vaske bilen. The postman came while I (wash) the car.
Medens de stod og ventede på toget, fik de øje på Sarah. While they (wait) for the train they saw Sarah.
Medens Michael lavede mad, sad hans kæreste og læste lektier. While Michael (cook) , his girlfriend (do) her homework.
Det var en smuk dag. Solen skinnede og fuglene sang. It was a beautiful day. The sun (shine) and the birds (sing) .
Amy sad og skrev et brev. Amy (write) a letter.
Vi sad og spiste frokost, da min bedstefar ringede. We (have) lunch when my granfather called.
Medens du sov, gjorde jeg hele huset rent. While you (sleep) I cleaned the whole house.

When I walked into the office, several people (type) busily, some (talk) on the phones, the boss (yell) directions, and customers (wait) to be helped. Some of them (complain) to each other about the bad service.