English verb conjugation
COULD MUL

Regular verb: mul - muled - muled

Affirmation

Simple form	V-ing form
I could mul you could mul he could mul we could mul you could mul they could mul	I could be muling you could be muling he 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 he 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 he 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 he 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 he 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 he 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 he 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 he mul? could we mul? could you mul? could they mul?	could I be muling? could you be muling? could he 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 he 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 he 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 he 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 he 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 he 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 he have been muling? couldn't we have been muling? couldn't you have been muling? couldn't they have been muling?