English verb conjugation
COULD TROWEL

Regular verb: trowel - troweled - troweled

Affirmation

Simple form	V-ing form
I could trowel you could trowel he could trowel we could trowel you could trowel they could trowel	I could be troweling you could be troweling he could be troweling we could be troweling you could be troweling they could be troweling
Perfect	V-ing perfect
I could have troweled you could have troweled he could have troweled we could have troweled you could have troweled they could have troweled	I could have been troweling you could have been troweling he could have been troweling we could have been troweling you could have been troweling they could have been troweling

Negation

Simple form	V-ing form
I couldn't trowel you couldn't trowel he couldn't trowel we couldn't trowel you couldn't trowel they couldn't trowel	I couldn't be troweling you couldn't be troweling he couldn't be troweling we couldn't be troweling you couldn't be troweling they couldn't be troweling
Perfect	V-ing perfect
I couldn't have troweled you couldn't have troweled he couldn't have troweled we couldn't have troweled you couldn't have troweled they couldn't have troweled	I couldn't have been troweling you couldn't have been troweling he couldn't have been troweling we couldn't have been troweling you couldn't have been troweling they couldn't have been troweling

Interrogative form

Simple form	V-ing form
could I trowel? could you trowel? could he trowel? could we trowel? could you trowel? could they trowel?	could I be troweling? could you be troweling? could he be troweling? could we be troweling? could you be troweling? could they be troweling?
Perfect	V-ing perfect
could I have troweled? could you have troweled? could he have troweled? could we have troweled? could you have troweled? could they have troweled?	could I have been troweling? could you have been troweling? could he have been troweling? could we have been troweling? could you have been troweling? could they have been troweling?

Interro-negative form

Simple form	V-ing form
couldn't I trowel? couldn't you trowel? couldn't he trowel? couldn't we trowel? couldn't you trowel? couldn't they trowel?	couldn't I be troweling? couldn't you be troweling? couldn't he be troweling? couldn't we be troweling? couldn't you be troweling? couldn't they be troweling?
Perfect	V-ing perfect
couldn't I have troweled? couldn't you have troweled? couldn't he have troweled? couldn't we have troweled? couldn't you have troweled? couldn't they have troweled?	couldn't I have been troweling? couldn't you have been troweling? couldn't he have been troweling? couldn't we have been troweling? couldn't you have been troweling? couldn't they have been troweling?