English verb conjugation
COULD MASTICATE

Regular verb: masticate - masticated - masticated

Affirmation

Simple form	V-ing form
I could masticate you could masticate he could masticate we could masticate you could masticate they could masticate	I could be masticating you could be masticating he could be masticating we could be masticating you could be masticating they could be masticating
Perfect	V-ing perfect
I could have masticated you could have masticated he could have masticated we could have masticated you could have masticated they could have masticated	I could have been masticating you could have been masticating he could have been masticating we could have been masticating you could have been masticating they could have been masticating

Negation

Simple form	V-ing form
I couldn't masticate you couldn't masticate he couldn't masticate we couldn't masticate you couldn't masticate they couldn't masticate	I couldn't be masticating you couldn't be masticating he couldn't be masticating we couldn't be masticating you couldn't be masticating they couldn't be masticating
Perfect	V-ing perfect
I couldn't have masticated you couldn't have masticated he couldn't have masticated we couldn't have masticated you couldn't have masticated they couldn't have masticated	I couldn't have been masticating you couldn't have been masticating he couldn't have been masticating we couldn't have been masticating you couldn't have been masticating they couldn't have been masticating

Interrogative form

Simple form	V-ing form
could I masticate? could you masticate? could he masticate? could we masticate? could you masticate? could they masticate?	could I be masticating? could you be masticating? could he be masticating? could we be masticating? could you be masticating? could they be masticating?
Perfect	V-ing perfect
could I have masticated? could you have masticated? could he have masticated? could we have masticated? could you have masticated? could they have masticated?	could I have been masticating? could you have been masticating? could he have been masticating? could we have been masticating? could you have been masticating? could they have been masticating?

Interro-negative form

Simple form	V-ing form
couldn't I masticate? couldn't you masticate? couldn't he masticate? couldn't we masticate? couldn't you masticate? couldn't they masticate?	couldn't I be masticating? couldn't you be masticating? couldn't he be masticating? couldn't we be masticating? couldn't you be masticating? couldn't they be masticating?
Perfect	V-ing perfect
couldn't I have masticated? couldn't you have masticated? couldn't he have masticated? couldn't we have masticated? couldn't you have masticated? couldn't they have masticated?	couldn't I have been masticating? couldn't you have been masticating? couldn't he have been masticating? couldn't we have been masticating? couldn't you have been masticating? couldn't they have been masticating?