I came across this problem with a BIAB version of Mercy, Mercy, Mercy.

The last four bars of the chorus go:

Cm7 | Dm7 | Gm7, F Gm7, F | Gm

but in the third bar the Gm7 is held for a dotted crotchet (8th note) and the F for a quaver (16th note) - you might call this out in "1 and 2 and 3 and 4" representation as "G and 2 F G and 4 F".

At first sight, it looked as though I could get what I wanted by pushing the F by 1/16, but then I'd have to displace the Gm7 which should follow it.

Is there a work-around for the situation where chords should fall on a fractional part of a crotchet (8th note) without following on into the next crotchet?