English verb conjugation
COULD MUL

Regular verb: mul - muled - muled

Affirmation

Simple form	V-ing form
I could mul you could mul she could mul we could mul you could mul they could mul	I could be muling you could be muling she could be muling we could be muling you could be muling they could be muling
Perfect	V-ing perfect
I could have muled you could have muled she could have muled we could have muled you could have muled they could have muled	I could have been muling you could have been muling she could have been muling we could have been muling you could have been muling they could have been muling

Negation

Simple form	V-ing form
I couldn't mul you couldn't mul she couldn't mul we couldn't mul you couldn't mul they couldn't mul	I couldn't be muling you couldn't be muling she couldn't be muling we couldn't be muling you couldn't be muling they couldn't be muling
Perfect	V-ing perfect
I couldn't have muled you couldn't have muled she couldn't have muled we couldn't have muled you couldn't have muled they couldn't have muled	I couldn't have been muling you couldn't have been muling she couldn't have been muling we couldn't have been muling you couldn't have been muling they couldn't have been muling

Interrogative form

Simple form	V-ing form
could I mul? could you mul? could she mul? could we mul? could you mul? could they mul?	could I be muling? could you be muling? could she be muling? could we be muling? could you be muling? could they be muling?
Perfect	V-ing perfect
could I have muled? could you have muled? could she have muled? could we have muled? could you have muled? could they have muled?	could I have been muling? could you have been muling? could she have been muling? could we have been muling? could you have been muling? could they have been muling?

Interro-negative form

Simple form	V-ing form
couldn't I mul? couldn't you mul? couldn't she mul? couldn't we mul? couldn't you mul? couldn't they mul?	couldn't I be muling? couldn't you be muling? couldn't she be muling? couldn't we be muling? couldn't you be muling? couldn't they be muling?
Perfect	V-ing perfect
couldn't I have muled? couldn't you have muled? couldn't she have muled? couldn't we have muled? couldn't you have muled? couldn't they have muled?	couldn't I have been muling? couldn't you have been muling? couldn't she have been muling? couldn't we have been muling? couldn't you have been muling? couldn't they have been muling?