English verb conjugation
COULD SIMPLIFY

Regular verb: simplify - simplified - simplified

Affirmation

Simple form	V-ing form
I could simplify you could simplify she could simplify we could simplify you could simplify they could simplify	I could be simplifying you could be simplifying she could be simplifying we could be simplifying you could be simplifying they could be simplifying
Perfect	V-ing perfect
I could have simplified you could have simplified she could have simplified we could have simplified you could have simplified they could have simplified	I could have been simplifying you could have been simplifying she could have been simplifying we could have been simplifying you could have been simplifying they could have been simplifying

Negation

Simple form	V-ing form
I couldn't simplify you couldn't simplify she couldn't simplify we couldn't simplify you couldn't simplify they couldn't simplify	I couldn't be simplifying you couldn't be simplifying she couldn't be simplifying we couldn't be simplifying you couldn't be simplifying they couldn't be simplifying
Perfect	V-ing perfect
I couldn't have simplified you couldn't have simplified she couldn't have simplified we couldn't have simplified you couldn't have simplified they couldn't have simplified	I couldn't have been simplifying you couldn't have been simplifying she couldn't have been simplifying we couldn't have been simplifying you couldn't have been simplifying they couldn't have been simplifying

Interrogative form

Simple form	V-ing form
could I simplify? could you simplify? could she simplify? could we simplify? could you simplify? could they simplify?	could I be simplifying? could you be simplifying? could she be simplifying? could we be simplifying? could you be simplifying? could they be simplifying?
Perfect	V-ing perfect
could I have simplified? could you have simplified? could she have simplified? could we have simplified? could you have simplified? could they have simplified?	could I have been simplifying? could you have been simplifying? could she have been simplifying? could we have been simplifying? could you have been simplifying? could they have been simplifying?

Interro-negative form

Simple form	V-ing form
couldn't I simplify? couldn't you simplify? couldn't she simplify? couldn't we simplify? couldn't you simplify? couldn't they simplify?	couldn't I be simplifying? couldn't you be simplifying? couldn't she be simplifying? couldn't we be simplifying? couldn't you be simplifying? couldn't they be simplifying?
Perfect	V-ing perfect
couldn't I have simplified? couldn't you have simplified? couldn't she have simplified? couldn't we have simplified? couldn't you have simplified? couldn't they have simplified?	couldn't I have been simplifying? couldn't you have been simplifying? couldn't she have been simplifying? couldn't we have been simplifying? couldn't you have been simplifying? couldn't they have been simplifying?