English verb conjugation
COULD ASSOIL

Regular verb: assoil - assoiled - assoiled

Affirmation

Simple form	V-ing form
I could assoil you could assoil he could assoil we could assoil you could assoil they could assoil	I could be assoiling you could be assoiling he could be assoiling we could be assoiling you could be assoiling they could be assoiling
Perfect	V-ing perfect
I could have assoiled you could have assoiled he could have assoiled we could have assoiled you could have assoiled they could have assoiled	I could have been assoiling you could have been assoiling he could have been assoiling we could have been assoiling you could have been assoiling they could have been assoiling

Negation

Simple form	V-ing form
I couldn't assoil you couldn't assoil he couldn't assoil we couldn't assoil you couldn't assoil they couldn't assoil	I couldn't be assoiling you couldn't be assoiling he couldn't be assoiling we couldn't be assoiling you couldn't be assoiling they couldn't be assoiling
Perfect	V-ing perfect
I couldn't have assoiled you couldn't have assoiled he couldn't have assoiled we couldn't have assoiled you couldn't have assoiled they couldn't have assoiled	I couldn't have been assoiling you couldn't have been assoiling he couldn't have been assoiling we couldn't have been assoiling you couldn't have been assoiling they couldn't have been assoiling

Interrogative form

Simple form	V-ing form
could I assoil? could you assoil? could he assoil? could we assoil? could you assoil? could they assoil?	could I be assoiling? could you be assoiling? could he be assoiling? could we be assoiling? could you be assoiling? could they be assoiling?
Perfect	V-ing perfect
could I have assoiled? could you have assoiled? could he have assoiled? could we have assoiled? could you have assoiled? could they have assoiled?	could I have been assoiling? could you have been assoiling? could he have been assoiling? could we have been assoiling? could you have been assoiling? could they have been assoiling?

Interro-negative form

Simple form	V-ing form
couldn't I assoil? couldn't you assoil? couldn't he assoil? couldn't we assoil? couldn't you assoil? couldn't they assoil?	couldn't I be assoiling? couldn't you be assoiling? couldn't he be assoiling? couldn't we be assoiling? couldn't you be assoiling? couldn't they be assoiling?
Perfect	V-ing perfect
couldn't I have assoiled? couldn't you have assoiled? couldn't he have assoiled? couldn't we have assoiled? couldn't you have assoiled? couldn't they have assoiled?	couldn't I have been assoiling? couldn't you have been assoiling? couldn't he have been assoiling? couldn't we have been assoiling? couldn't you have been assoiling? couldn't they have been assoiling?