English verb conjugation
COULD ENTOIL

Regular verb: entoil - entoiled - entoiled

Affirmation

Simple form	V-ing form
I could entoil you could entoil he could entoil we could entoil you could entoil they could entoil	I could be entoiling you could be entoiling he could be entoiling we could be entoiling you could be entoiling they could be entoiling
Perfect	V-ing perfect
I could have entoiled you could have entoiled he could have entoiled we could have entoiled you could have entoiled they could have entoiled	I could have been entoiling you could have been entoiling he could have been entoiling we could have been entoiling you could have been entoiling they could have been entoiling

Negation

Simple form	V-ing form
I couldn't entoil you couldn't entoil he couldn't entoil we couldn't entoil you couldn't entoil they couldn't entoil	I couldn't be entoiling you couldn't be entoiling he couldn't be entoiling we couldn't be entoiling you couldn't be entoiling they couldn't be entoiling
Perfect	V-ing perfect
I couldn't have entoiled you couldn't have entoiled he couldn't have entoiled we couldn't have entoiled you couldn't have entoiled they couldn't have entoiled	I couldn't have been entoiling you couldn't have been entoiling he couldn't have been entoiling we couldn't have been entoiling you couldn't have been entoiling they couldn't have been entoiling

Interrogative form

Simple form	V-ing form
could I entoil? could you entoil? could he entoil? could we entoil? could you entoil? could they entoil?	could I be entoiling? could you be entoiling? could he be entoiling? could we be entoiling? could you be entoiling? could they be entoiling?
Perfect	V-ing perfect
could I have entoiled? could you have entoiled? could he have entoiled? could we have entoiled? could you have entoiled? could they have entoiled?	could I have been entoiling? could you have been entoiling? could he have been entoiling? could we have been entoiling? could you have been entoiling? could they have been entoiling?

Interro-negative form

Simple form	V-ing form
couldn't I entoil? couldn't you entoil? couldn't he entoil? couldn't we entoil? couldn't you entoil? couldn't they entoil?	couldn't I be entoiling? couldn't you be entoiling? couldn't he be entoiling? couldn't we be entoiling? couldn't you be entoiling? couldn't they be entoiling?
Perfect	V-ing perfect
couldn't I have entoiled? couldn't you have entoiled? couldn't he have entoiled? couldn't we have entoiled? couldn't you have entoiled? couldn't they have entoiled?	couldn't I have been entoiling? couldn't you have been entoiling? couldn't he have been entoiling? couldn't we have been entoiling? couldn't you have been entoiling? couldn't they have been entoiling?