Hogy mondom az alábbi mondatokat helyesen angolul?

The table was being laid when a plate fell.

The letter was burnt before they could find it.

Now, a bridge is being built.

They were setting up the table when the plate fell on the floor.

The letter had been burnt before they could have found it. They are building a new bridge. vagy A new bridge is under construction. vagy A new bridge is being built.

Remelem tudtam segiteni.