English verb conjugation
COULD DESERT

Regular verb: desert - deserted - deserted

Affirmation

Simple form	V-ing form
I could desert you could desert he could desert we could desert you could desert they could desert	I could be deserting you could be deserting he could be deserting we could be deserting you could be deserting they could be deserting
Perfect	V-ing perfect
I could have deserted you could have deserted he could have deserted we could have deserted you could have deserted they could have deserted	I could have been deserting you could have been deserting he could have been deserting we could have been deserting you could have been deserting they could have been deserting

Negation

Simple form	V-ing form
I couldn't desert you couldn't desert he couldn't desert we couldn't desert you couldn't desert they couldn't desert	I couldn't be deserting you couldn't be deserting he couldn't be deserting we couldn't be deserting you couldn't be deserting they couldn't be deserting
Perfect	V-ing perfect
I couldn't have deserted you couldn't have deserted he couldn't have deserted we couldn't have deserted you couldn't have deserted they couldn't have deserted	I couldn't have been deserting you couldn't have been deserting he couldn't have been deserting we couldn't have been deserting you couldn't have been deserting they couldn't have been deserting

Interrogative form

Simple form	V-ing form
could I desert? could you desert? could he desert? could we desert? could you desert? could they desert?	could I be deserting? could you be deserting? could he be deserting? could we be deserting? could you be deserting? could they be deserting?
Perfect	V-ing perfect
could I have deserted? could you have deserted? could he have deserted? could we have deserted? could you have deserted? could they have deserted?	could I have been deserting? could you have been deserting? could he have been deserting? could we have been deserting? could you have been deserting? could they have been deserting?

Interro-negative form

Simple form	V-ing form
couldn't I desert? couldn't you desert? couldn't he desert? couldn't we desert? couldn't you desert? couldn't they desert?	couldn't I be deserting? couldn't you be deserting? couldn't he be deserting? couldn't we be deserting? couldn't you be deserting? couldn't they be deserting?
Perfect	V-ing perfect
couldn't I have deserted? couldn't you have deserted? couldn't he have deserted? couldn't we have deserted? couldn't you have deserted? couldn't they have deserted?	couldn't I have been deserting? couldn't you have been deserting? couldn't he have been deserting? couldn't we have been deserting? couldn't you have been deserting? couldn't they have been deserting?