English verb conjugation
COULD UNDERPRAISE

Regular verb: underpraise - underpraised - underpraised

Affirmation

Simple form	V-ing form
I could underpraise you could underpraise he could underpraise we could underpraise you could underpraise they could underpraise	I could be underpraising you could be underpraising he could be underpraising we could be underpraising you could be underpraising they could be underpraising
Perfect	V-ing perfect
I could have underpraised you could have underpraised he could have underpraised we could have underpraised you could have underpraised they could have underpraised	I could have been underpraising you could have been underpraising he could have been underpraising we could have been underpraising you could have been underpraising they could have been underpraising

Negation

Simple form	V-ing form
I couldn't underpraise you couldn't underpraise he couldn't underpraise we couldn't underpraise you couldn't underpraise they couldn't underpraise	I couldn't be underpraising you couldn't be underpraising he couldn't be underpraising we couldn't be underpraising you couldn't be underpraising they couldn't be underpraising
Perfect	V-ing perfect
I couldn't have underpraised you couldn't have underpraised he couldn't have underpraised we couldn't have underpraised you couldn't have underpraised they couldn't have underpraised	I couldn't have been underpraising you couldn't have been underpraising he couldn't have been underpraising we couldn't have been underpraising you couldn't have been underpraising they couldn't have been underpraising

Interrogative form

Simple form	V-ing form
could I underpraise? could you underpraise? could he underpraise? could we underpraise? could you underpraise? could they underpraise?	could I be underpraising? could you be underpraising? could he be underpraising? could we be underpraising? could you be underpraising? could they be underpraising?
Perfect	V-ing perfect
could I have underpraised? could you have underpraised? could he have underpraised? could we have underpraised? could you have underpraised? could they have underpraised?	could I have been underpraising? could you have been underpraising? could he have been underpraising? could we have been underpraising? could you have been underpraising? could they have been underpraising?

Interro-negative form

Simple form	V-ing form
couldn't I underpraise? couldn't you underpraise? couldn't he underpraise? couldn't we underpraise? couldn't you underpraise? couldn't they underpraise?	couldn't I be underpraising? couldn't you be underpraising? couldn't he be underpraising? couldn't we be underpraising? couldn't you be underpraising? couldn't they be underpraising?
Perfect	V-ing perfect
couldn't I have underpraised? couldn't you have underpraised? couldn't he have underpraised? couldn't we have underpraised? couldn't you have underpraised? couldn't they have underpraised?	couldn't I have been underpraising? couldn't you have been underpraising? couldn't he have been underpraising? couldn't we have been underpraising? couldn't you have been underpraising? couldn't they have been underpraising?