English verb conjugation
COULD GRUMMET

Regular verb: grummet - grummeted - grummeted

Affirmation

Simple form	V-ing form
I could grummet you could grummet he could grummet we could grummet you could grummet they could grummet	I could be grummeting you could be grummeting he could be grummeting we could be grummeting you could be grummeting they could be grummeting
Perfect	V-ing perfect
I could have grummeted you could have grummeted he could have grummeted we could have grummeted you could have grummeted they could have grummeted	I could have been grummeting you could have been grummeting he could have been grummeting we could have been grummeting you could have been grummeting they could have been grummeting

Negation

Simple form	V-ing form
I couldn't grummet you couldn't grummet he couldn't grummet we couldn't grummet you couldn't grummet they couldn't grummet	I couldn't be grummeting you couldn't be grummeting he couldn't be grummeting we couldn't be grummeting you couldn't be grummeting they couldn't be grummeting
Perfect	V-ing perfect
I couldn't have grummeted you couldn't have grummeted he couldn't have grummeted we couldn't have grummeted you couldn't have grummeted they couldn't have grummeted	I couldn't have been grummeting you couldn't have been grummeting he couldn't have been grummeting we couldn't have been grummeting you couldn't have been grummeting they couldn't have been grummeting

Interrogative form

Simple form	V-ing form
could I grummet? could you grummet? could he grummet? could we grummet? could you grummet? could they grummet?	could I be grummeting? could you be grummeting? could he be grummeting? could we be grummeting? could you be grummeting? could they be grummeting?
Perfect	V-ing perfect
could I have grummeted? could you have grummeted? could he have grummeted? could we have grummeted? could you have grummeted? could they have grummeted?	could I have been grummeting? could you have been grummeting? could he have been grummeting? could we have been grummeting? could you have been grummeting? could they have been grummeting?

Interro-negative form

Simple form	V-ing form
couldn't I grummet? couldn't you grummet? couldn't he grummet? couldn't we grummet? couldn't you grummet? couldn't they grummet?	couldn't I be grummeting? couldn't you be grummeting? couldn't he be grummeting? couldn't we be grummeting? couldn't you be grummeting? couldn't they be grummeting?
Perfect	V-ing perfect
couldn't I have grummeted? couldn't you have grummeted? couldn't he have grummeted? couldn't we have grummeted? couldn't you have grummeted? couldn't they have grummeted?	couldn't I have been grummeting? couldn't you have been grummeting? couldn't he have been grummeting? couldn't we have been grummeting? couldn't you have been grummeting? couldn't they have been grummeting?