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 could not masticate you could not masticate he could not masticate we could not masticate you could not masticate they could not masticate	I could not be masticating you could not be masticating he could not be masticating we could not be masticating you could not be masticating they could not be masticating
Perfect	V-ing perfect
I could not have masticated you could not have masticated he could not have masticated we could not have masticated you could not have masticated they could not have masticated	I could not have been masticating you could not have been masticating he could not have been masticating we could not have been masticating you could not have been masticating they could not 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
could I not masticate? could you not masticate? could he not masticate? could we not masticate? could you not masticate? could they not masticate?	could I not be masticating? could you not be masticating? could he not be masticating? could we not be masticating? could you not be masticating? could they not be masticating?
Perfect	V-ing perfect
could I not have masticated? could you not have masticated? could he not have masticated? could we not have masticated? could you not have masticated? could they not have masticated?	could I not have been masticating? could you not have been masticating? could he not have been masticating? could we not have been masticating? could you not have been masticating? could they not have been masticating?