The past tense of focus-group is focus-grouped. See all forms of focus-group with easy examples.
The past tense of focus is focused or, less commonly, focussed. See all forms of focus with easy examples.
The past tense of foam is foamed. See all forms of foam with easy examples.
The past tense of foal is foaled. See all forms of foal with easy examples.
The past tense of flypost is flyposted. See all forms of flypost with easy examples.
The past tense of flyer is flyered. See all forms of flyer with easy examples.
The past tense of flyte is flyted. See all forms of flyte with easy examples.
The past tense of fly-tip is fly-tipped. See all forms of fly-tip with easy examples.
The past tense of fly-fish is fly-fished. See all forms of fly-fish with easy examples.
The past tense of fly-pitch is fly-pitched. See all forms of fly-pitch with easy examples.