English verb conjugation
COULD SERENADE

Regular verb: serenade - serenaded - serenaded

Affirmation

Simple form	V-ing form
I could serenade you could serenade she could serenade we could serenade you could serenade they could serenade	I could be serenading you could be serenading she could be serenading we could be serenading you could be serenading they could be serenading
Perfect	V-ing perfect
I could have serenaded you could have serenaded she could have serenaded we could have serenaded you could have serenaded they could have serenaded	I could have been serenading you could have been serenading she could have been serenading we could have been serenading you could have been serenading they could have been serenading

Negation

Simple form	V-ing form
I couldn't serenade you couldn't serenade she couldn't serenade we couldn't serenade you couldn't serenade they couldn't serenade	I couldn't be serenading you couldn't be serenading she couldn't be serenading we couldn't be serenading you couldn't be serenading they couldn't be serenading
Perfect	V-ing perfect
I couldn't have serenaded you couldn't have serenaded she couldn't have serenaded we couldn't have serenaded you couldn't have serenaded they couldn't have serenaded	I couldn't have been serenading you couldn't have been serenading she couldn't have been serenading we couldn't have been serenading you couldn't have been serenading they couldn't have been serenading

Interrogative form

Simple form	V-ing form
could I serenade? could you serenade? could she serenade? could we serenade? could you serenade? could they serenade?	could I be serenading? could you be serenading? could she be serenading? could we be serenading? could you be serenading? could they be serenading?
Perfect	V-ing perfect
could I have serenaded? could you have serenaded? could she have serenaded? could we have serenaded? could you have serenaded? could they have serenaded?	could I have been serenading? could you have been serenading? could she have been serenading? could we have been serenading? could you have been serenading? could they have been serenading?

Interro-negative form

Simple form	V-ing form
couldn't I serenade? couldn't you serenade? couldn't she serenade? couldn't we serenade? couldn't you serenade? couldn't they serenade?	couldn't I be serenading? couldn't you be serenading? couldn't she be serenading? couldn't we be serenading? couldn't you be serenading? couldn't they be serenading?
Perfect	V-ing perfect
couldn't I have serenaded? couldn't you have serenaded? couldn't she have serenaded? couldn't we have serenaded? couldn't you have serenaded? couldn't they have serenaded?	couldn't I have been serenading? couldn't you have been serenading? couldn't she have been serenading? couldn't we have been serenading? couldn't you have been serenading? couldn't they have been serenading?