English verb conjugation
COULD GESTURE

Regular verb: gesture - gestured - gestured

Affirmation

Simple form	V-ing form
I could gesture you could gesture she could gesture we could gesture you could gesture they could gesture	I could be gesturing you could be gesturing she could be gesturing we could be gesturing you could be gesturing they could be gesturing
Perfect	V-ing perfect
I could have gestured you could have gestured she could have gestured we could have gestured you could have gestured they could have gestured	I could have been gesturing you could have been gesturing she could have been gesturing we could have been gesturing you could have been gesturing they could have been gesturing

Negation

Simple form	V-ing form
I couldn't gesture you couldn't gesture she couldn't gesture we couldn't gesture you couldn't gesture they couldn't gesture	I couldn't be gesturing you couldn't be gesturing she couldn't be gesturing we couldn't be gesturing you couldn't be gesturing they couldn't be gesturing
Perfect	V-ing perfect
I couldn't have gestured you couldn't have gestured she couldn't have gestured we couldn't have gestured you couldn't have gestured they couldn't have gestured	I couldn't have been gesturing you couldn't have been gesturing she couldn't have been gesturing we couldn't have been gesturing you couldn't have been gesturing they couldn't have been gesturing

Interrogative form

Simple form	V-ing form
could I gesture? could you gesture? could she gesture? could we gesture? could you gesture? could they gesture?	could I be gesturing? could you be gesturing? could she be gesturing? could we be gesturing? could you be gesturing? could they be gesturing?
Perfect	V-ing perfect
could I have gestured? could you have gestured? could she have gestured? could we have gestured? could you have gestured? could they have gestured?	could I have been gesturing? could you have been gesturing? could she have been gesturing? could we have been gesturing? could you have been gesturing? could they have been gesturing?

Interro-negative form

Simple form	V-ing form
couldn't I gesture? couldn't you gesture? couldn't she gesture? couldn't we gesture? couldn't you gesture? couldn't they gesture?	couldn't I be gesturing? couldn't you be gesturing? couldn't she be gesturing? couldn't we be gesturing? couldn't you be gesturing? couldn't they be gesturing?
Perfect	V-ing perfect
couldn't I have gestured? couldn't you have gestured? couldn't she have gestured? couldn't we have gestured? couldn't you have gestured? couldn't they have gestured?	couldn't I have been gesturing? couldn't you have been gesturing? couldn't she have been gesturing? couldn't we have been gesturing? couldn't you have been gesturing? couldn't they have been gesturing?