English verb conjugation
COULD UNDERCOOL

Regular verb: undercool - undercooled - undercooled

Affirmation

Simple form	V-ing form
I could undercool you could undercool she could undercool we could undercool you could undercool they could undercool	I could be undercooling you could be undercooling she could be undercooling we could be undercooling you could be undercooling they could be undercooling
Perfect	V-ing perfect
I could have undercooled you could have undercooled she could have undercooled we could have undercooled you could have undercooled they could have undercooled	I could have been undercooling you could have been undercooling she could have been undercooling we could have been undercooling you could have been undercooling they could have been undercooling

Negation

Simple form	V-ing form
I couldn't undercool you couldn't undercool she couldn't undercool we couldn't undercool you couldn't undercool they couldn't undercool	I couldn't be undercooling you couldn't be undercooling she couldn't be undercooling we couldn't be undercooling you couldn't be undercooling they couldn't be undercooling
Perfect	V-ing perfect
I couldn't have undercooled you couldn't have undercooled she couldn't have undercooled we couldn't have undercooled you couldn't have undercooled they couldn't have undercooled	I couldn't have been undercooling you couldn't have been undercooling she couldn't have been undercooling we couldn't have been undercooling you couldn't have been undercooling they couldn't have been undercooling

Interrogative form

Simple form	V-ing form
could I undercool? could you undercool? could she undercool? could we undercool? could you undercool? could they undercool?	could I be undercooling? could you be undercooling? could she be undercooling? could we be undercooling? could you be undercooling? could they be undercooling?
Perfect	V-ing perfect
could I have undercooled? could you have undercooled? could she have undercooled? could we have undercooled? could you have undercooled? could they have undercooled?	could I have been undercooling? could you have been undercooling? could she have been undercooling? could we have been undercooling? could you have been undercooling? could they have been undercooling?

Interro-negative form

Simple form	V-ing form
couldn't I undercool? couldn't you undercool? couldn't she undercool? couldn't we undercool? couldn't you undercool? couldn't they undercool?	couldn't I be undercooling? couldn't you be undercooling? couldn't she be undercooling? couldn't we be undercooling? couldn't you be undercooling? couldn't they be undercooling?
Perfect	V-ing perfect
couldn't I have undercooled? couldn't you have undercooled? couldn't she have undercooled? couldn't we have undercooled? couldn't you have undercooled? couldn't they have undercooled?	couldn't I have been undercooling? couldn't you have been undercooling? couldn't she have been undercooling? couldn't we have been undercooling? couldn't you have been undercooling? couldn't they have been undercooling?