The only have four phone lines, and so are constantly engaged.

As you've probably noticed, we're all constantly engaged in the act of time travel.

Bland was in the room next door working the phone, his line constantly engaged.

I was engaged constantly with two or three swordsmen at a time.

The 58th was then constantly engaged on the Eastern Front until the end of the war in 1945.

I've been trying to ring Liverpool direct but its constantly engaged.

He was constantly either engaged in activity or sleeping.

During two years (1897-1898) he was constantly engaged in a life-and-death struggle with them.

The administration insists that it has been constantly engaged.

The Business is constantly engaged in negotiations which may or may not lead to a contract.