English verb conjugation
COULD TREADLE

Regular verb: treadle - treadled - treadled

Affirmation

Simple form	V-ing form
I could treadle you could treadle she could treadle we could treadle you could treadle they could treadle	I could be treadling you could be treadling she could be treadling we could be treadling you could be treadling they could be treadling
Perfect	V-ing perfect
I could have treadled you could have treadled she could have treadled we could have treadled you could have treadled they could have treadled	I could have been treadling you could have been treadling she could have been treadling we could have been treadling you could have been treadling they could have been treadling

Negation

Simple form	V-ing form
I couldn't treadle you couldn't treadle she couldn't treadle we couldn't treadle you couldn't treadle they couldn't treadle	I couldn't be treadling you couldn't be treadling she couldn't be treadling we couldn't be treadling you couldn't be treadling they couldn't be treadling
Perfect	V-ing perfect
I couldn't have treadled you couldn't have treadled she couldn't have treadled we couldn't have treadled you couldn't have treadled they couldn't have treadled	I couldn't have been treadling you couldn't have been treadling she couldn't have been treadling we couldn't have been treadling you couldn't have been treadling they couldn't have been treadling

Interrogative form

Simple form	V-ing form
could I treadle? could you treadle? could she treadle? could we treadle? could you treadle? could they treadle?	could I be treadling? could you be treadling? could she be treadling? could we be treadling? could you be treadling? could they be treadling?
Perfect	V-ing perfect
could I have treadled? could you have treadled? could she have treadled? could we have treadled? could you have treadled? could they have treadled?	could I have been treadling? could you have been treadling? could she have been treadling? could we have been treadling? could you have been treadling? could they have been treadling?

Interro-negative form

Simple form	V-ing form
couldn't I treadle? couldn't you treadle? couldn't she treadle? couldn't we treadle? couldn't you treadle? couldn't they treadle?	couldn't I be treadling? couldn't you be treadling? couldn't she be treadling? couldn't we be treadling? couldn't you be treadling? couldn't they be treadling?
Perfect	V-ing perfect
couldn't I have treadled? couldn't you have treadled? couldn't she have treadled? couldn't we have treadled? couldn't you have treadled? couldn't they have treadled?	couldn't I have been treadling? couldn't you have been treadling? couldn't she have been treadling? couldn't we have been treadling? couldn't you have been treadling? couldn't they have been treadling?