Berean Standard Bible (BSB)
If they had been thinking of the country they had left, they would have had opportunity to return.
World English Bible (WEB)
If indeed they had been thinking of that country from which they went out, they would have had enough time to return.
Strong's King James
And{G2532} truly{G3303}, if{G1487} they had been mindful{G3421}{(G5707)} of that{G1565} country from{G575} whence{G3739} they came out{G1831}{(G5627)}, they might{G302} have had{G2192}{(G5707)} opportunity{G2540} to have returned{G344}{(G5658)}.
The F.O.G *
(15) And indeed if they had been remembering that from which they went out they would perhaps have had opportunity to return.
The F.O.G Message *
Young's Literal Translation
and if, indeed, they had been mindful of that from which they came forth, they might have had an opportunity to return,