English verb conjugation
COULD GESTURE

Regular verb: gesture - gestured - gestured

Affirmation

Simple form	V-ing form
I could gesture you could gesture he could gesture we could gesture you could gesture they could gesture	I could be gesturing you could be gesturing he 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 he 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 he 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 he 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 he 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 he 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 he 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 he gesture? could we gesture? could you gesture? could they gesture?	could I be gesturing? could you be gesturing? could he 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 he 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 he 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 he 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 he 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 he 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 he have been gesturing? couldn't we have been gesturing? couldn't you have been gesturing? couldn't they have been gesturing?