English verb conjugation
COULD SUTURE

Regular verb: suture - sutured - sutured

Affirmation

Simple form	V-ing form
I could suture you could suture he could suture we could suture you could suture they could suture	I could be suturing you could be suturing he could be suturing we could be suturing you could be suturing they could be suturing
Perfect	V-ing perfect
I could have sutured you could have sutured he could have sutured we could have sutured you could have sutured they could have sutured	I could have been suturing you could have been suturing he could have been suturing we could have been suturing you could have been suturing they could have been suturing

Negation

Simple form	V-ing form
I couldn't suture you couldn't suture he couldn't suture we couldn't suture you couldn't suture they couldn't suture	I couldn't be suturing you couldn't be suturing he couldn't be suturing we couldn't be suturing you couldn't be suturing they couldn't be suturing
Perfect	V-ing perfect
I couldn't have sutured you couldn't have sutured he couldn't have sutured we couldn't have sutured you couldn't have sutured they couldn't have sutured	I couldn't have been suturing you couldn't have been suturing he couldn't have been suturing we couldn't have been suturing you couldn't have been suturing they couldn't have been suturing

Interrogative form

Simple form	V-ing form
could I suture? could you suture? could he suture? could we suture? could you suture? could they suture?	could I be suturing? could you be suturing? could he be suturing? could we be suturing? could you be suturing? could they be suturing?
Perfect	V-ing perfect
could I have sutured? could you have sutured? could he have sutured? could we have sutured? could you have sutured? could they have sutured?	could I have been suturing? could you have been suturing? could he have been suturing? could we have been suturing? could you have been suturing? could they have been suturing?

Interro-negative form

Simple form	V-ing form
couldn't I suture? couldn't you suture? couldn't he suture? couldn't we suture? couldn't you suture? couldn't they suture?	couldn't I be suturing? couldn't you be suturing? couldn't he be suturing? couldn't we be suturing? couldn't you be suturing? couldn't they be suturing?
Perfect	V-ing perfect
couldn't I have sutured? couldn't you have sutured? couldn't he have sutured? couldn't we have sutured? couldn't you have sutured? couldn't they have sutured?	couldn't I have been suturing? couldn't you have been suturing? couldn't he have been suturing? couldn't we have been suturing? couldn't you have been suturing? couldn't they have been suturing?