English verb conjugation
COULD TURPENTINE

Regular verb: turpentine - turpentined - turpentined

Affirmation

Simple form	V-ing form
I could turpentine you could turpentine he could turpentine we could turpentine you could turpentine they could turpentine	I could be turpentining you could be turpentining he could be turpentining we could be turpentining you could be turpentining they could be turpentining
Perfect	V-ing perfect
I could have turpentined you could have turpentined he could have turpentined we could have turpentined you could have turpentined they could have turpentined	I could have been turpentining you could have been turpentining he could have been turpentining we could have been turpentining you could have been turpentining they could have been turpentining

Negation

Simple form	V-ing form
I couldn't turpentine you couldn't turpentine he couldn't turpentine we couldn't turpentine you couldn't turpentine they couldn't turpentine	I couldn't be turpentining you couldn't be turpentining he couldn't be turpentining we couldn't be turpentining you couldn't be turpentining they couldn't be turpentining
Perfect	V-ing perfect
I couldn't have turpentined you couldn't have turpentined he couldn't have turpentined we couldn't have turpentined you couldn't have turpentined they couldn't have turpentined	I couldn't have been turpentining you couldn't have been turpentining he couldn't have been turpentining we couldn't have been turpentining you couldn't have been turpentining they couldn't have been turpentining

Interrogative form

Simple form	V-ing form
could I turpentine? could you turpentine? could he turpentine? could we turpentine? could you turpentine? could they turpentine?	could I be turpentining? could you be turpentining? could he be turpentining? could we be turpentining? could you be turpentining? could they be turpentining?
Perfect	V-ing perfect
could I have turpentined? could you have turpentined? could he have turpentined? could we have turpentined? could you have turpentined? could they have turpentined?	could I have been turpentining? could you have been turpentining? could he have been turpentining? could we have been turpentining? could you have been turpentining? could they have been turpentining?

Interro-negative form

Simple form	V-ing form
couldn't I turpentine? couldn't you turpentine? couldn't he turpentine? couldn't we turpentine? couldn't you turpentine? couldn't they turpentine?	couldn't I be turpentining? couldn't you be turpentining? couldn't he be turpentining? couldn't we be turpentining? couldn't you be turpentining? couldn't they be turpentining?
Perfect	V-ing perfect
couldn't I have turpentined? couldn't you have turpentined? couldn't he have turpentined? couldn't we have turpentined? couldn't you have turpentined? couldn't they have turpentined?	couldn't I have been turpentining? couldn't you have been turpentining? couldn't he have been turpentining? couldn't we have been turpentining? couldn't you have been turpentining? couldn't they have been turpentining?