English verb conjugation
COULD SQUABBLE

Regular verb: squabble - squabbled - squabbled

Affirmation

Simple form	V-ing form
I could squabble you could squabble he could squabble we could squabble you could squabble they could squabble	I could be squabbling you could be squabbling he could be squabbling we could be squabbling you could be squabbling they could be squabbling
Perfect	V-ing perfect
I could have squabbled you could have squabbled he could have squabbled we could have squabbled you could have squabbled they could have squabbled	I could have been squabbling you could have been squabbling he could have been squabbling we could have been squabbling you could have been squabbling they could have been squabbling

Negation

Simple form	V-ing form
I couldn't squabble you couldn't squabble he couldn't squabble we couldn't squabble you couldn't squabble they couldn't squabble	I couldn't be squabbling you couldn't be squabbling he couldn't be squabbling we couldn't be squabbling you couldn't be squabbling they couldn't be squabbling
Perfect	V-ing perfect
I couldn't have squabbled you couldn't have squabbled he couldn't have squabbled we couldn't have squabbled you couldn't have squabbled they couldn't have squabbled	I couldn't have been squabbling you couldn't have been squabbling he couldn't have been squabbling we couldn't have been squabbling you couldn't have been squabbling they couldn't have been squabbling

Interrogative form

Simple form	V-ing form
could I squabble? could you squabble? could he squabble? could we squabble? could you squabble? could they squabble?	could I be squabbling? could you be squabbling? could he be squabbling? could we be squabbling? could you be squabbling? could they be squabbling?
Perfect	V-ing perfect
could I have squabbled? could you have squabbled? could he have squabbled? could we have squabbled? could you have squabbled? could they have squabbled?	could I have been squabbling? could you have been squabbling? could he have been squabbling? could we have been squabbling? could you have been squabbling? could they have been squabbling?

Interro-negative form

Simple form	V-ing form
couldn't I squabble? couldn't you squabble? couldn't he squabble? couldn't we squabble? couldn't you squabble? couldn't they squabble?	couldn't I be squabbling? couldn't you be squabbling? couldn't he be squabbling? couldn't we be squabbling? couldn't you be squabbling? couldn't they be squabbling?
Perfect	V-ing perfect
couldn't I have squabbled? couldn't you have squabbled? couldn't he have squabbled? couldn't we have squabbled? couldn't you have squabbled? couldn't they have squabbled?	couldn't I have been squabbling? couldn't you have been squabbling? couldn't he have been squabbling? couldn't we have been squabbling? couldn't you have been squabbling? couldn't they have been squabbling?