English verb conjugation
COULD PROTOCOL

Regular verb: protocol - protocoled - protocoled

Affirmation

Simple form	V-ing form
I could protocol you could protocol she could protocol we could protocol you could protocol they could protocol	I could be protocoling you could be protocoling she could be protocoling we could be protocoling you could be protocoling they could be protocoling
Perfect	V-ing perfect
I could have protocoled you could have protocoled she could have protocoled we could have protocoled you could have protocoled they could have protocoled	I could have been protocoling you could have been protocoling she could have been protocoling we could have been protocoling you could have been protocoling they could have been protocoling

Negation

Simple form	V-ing form
I couldn't protocol you couldn't protocol she couldn't protocol we couldn't protocol you couldn't protocol they couldn't protocol	I couldn't be protocoling you couldn't be protocoling she couldn't be protocoling we couldn't be protocoling you couldn't be protocoling they couldn't be protocoling
Perfect	V-ing perfect
I couldn't have protocoled you couldn't have protocoled she couldn't have protocoled we couldn't have protocoled you couldn't have protocoled they couldn't have protocoled	I couldn't have been protocoling you couldn't have been protocoling she couldn't have been protocoling we couldn't have been protocoling you couldn't have been protocoling they couldn't have been protocoling

Interrogative form

Simple form	V-ing form
could I protocol? could you protocol? could she protocol? could we protocol? could you protocol? could they protocol?	could I be protocoling? could you be protocoling? could she be protocoling? could we be protocoling? could you be protocoling? could they be protocoling?
Perfect	V-ing perfect
could I have protocoled? could you have protocoled? could she have protocoled? could we have protocoled? could you have protocoled? could they have protocoled?	could I have been protocoling? could you have been protocoling? could she have been protocoling? could we have been protocoling? could you have been protocoling? could they have been protocoling?

Interro-negative form

Simple form	V-ing form
couldn't I protocol? couldn't you protocol? couldn't she protocol? couldn't we protocol? couldn't you protocol? couldn't they protocol?	couldn't I be protocoling? couldn't you be protocoling? couldn't she be protocoling? couldn't we be protocoling? couldn't you be protocoling? couldn't they be protocoling?
Perfect	V-ing perfect
couldn't I have protocoled? couldn't you have protocoled? couldn't she have protocoled? couldn't we have protocoled? couldn't you have protocoled? couldn't they have protocoled?	couldn't I have been protocoling? couldn't you have been protocoling? couldn't she have been protocoling? couldn't we have been protocoling? couldn't you have been protocoling? couldn't they have been protocoling?