Flip open a book (Lord of the Rings today), and find 3-4 four words. Make a sentence using the words. Repeat.
blameless, bane, answer.
The bane of the blameless is the answer whispered behind hands.
farewell, discover, foreknowledge, rattled.
She was rattled by the foreknowledge of her farewell and hoped her brother would not also discover it.
roused, tongue, mockery
He was roused to mockery at the sorry attempt to speak his tongue.
labour, uncounted weapons, grave
Your labor over these weapons will go uncounted, as their users will be in the grave.