English verb conjugation
COULD SWELTER

Regular verb: swelter - sweltered - sweltered

Affirmation

Simple form	V-ing form
I could swelter you could swelter he could swelter we could swelter you could swelter they could swelter	I could be sweltering you could be sweltering he could be sweltering we could be sweltering you could be sweltering they could be sweltering
Perfect	V-ing perfect
I could have sweltered you could have sweltered he could have sweltered we could have sweltered you could have sweltered they could have sweltered	I could have been sweltering you could have been sweltering he could have been sweltering we could have been sweltering you could have been sweltering they could have been sweltering

Negation

Simple form	V-ing form
I couldn't swelter you couldn't swelter he couldn't swelter we couldn't swelter you couldn't swelter they couldn't swelter	I couldn't be sweltering you couldn't be sweltering he couldn't be sweltering we couldn't be sweltering you couldn't be sweltering they couldn't be sweltering
Perfect	V-ing perfect
I couldn't have sweltered you couldn't have sweltered he couldn't have sweltered we couldn't have sweltered you couldn't have sweltered they couldn't have sweltered	I couldn't have been sweltering you couldn't have been sweltering he couldn't have been sweltering we couldn't have been sweltering you couldn't have been sweltering they couldn't have been sweltering

Interrogative form

Simple form	V-ing form
could I swelter? could you swelter? could he swelter? could we swelter? could you swelter? could they swelter?	could I be sweltering? could you be sweltering? could he be sweltering? could we be sweltering? could you be sweltering? could they be sweltering?
Perfect	V-ing perfect
could I have sweltered? could you have sweltered? could he have sweltered? could we have sweltered? could you have sweltered? could they have sweltered?	could I have been sweltering? could you have been sweltering? could he have been sweltering? could we have been sweltering? could you have been sweltering? could they have been sweltering?

Interro-negative form

Simple form	V-ing form
couldn't I swelter? couldn't you swelter? couldn't he swelter? couldn't we swelter? couldn't you swelter? couldn't they swelter?	couldn't I be sweltering? couldn't you be sweltering? couldn't he be sweltering? couldn't we be sweltering? couldn't you be sweltering? couldn't they be sweltering?
Perfect	V-ing perfect
couldn't I have sweltered? couldn't you have sweltered? couldn't he have sweltered? couldn't we have sweltered? couldn't you have sweltered? couldn't they have sweltered?	couldn't I have been sweltering? couldn't you have been sweltering? couldn't he have been sweltering? couldn't we have been sweltering? couldn't you have been sweltering? couldn't they have been sweltering?