English verb conjugation
COULD LIP-SYNCH

Regular verb: lip-synch - lip-synched - lip-synched

Affirmation

Simple form	V-ing form
I could lip-synch you could lip-synch he could lip-synch we could lip-synch you could lip-synch they could lip-synch	I could be lip-synching you could be lip-synching he could be lip-synching we could be lip-synching you could be lip-synching they could be lip-synching
Perfect	V-ing perfect
I could have lip-synched you could have lip-synched he could have lip-synched we could have lip-synched you could have lip-synched they could have lip-synched	I could have been lip-synching you could have been lip-synching he could have been lip-synching we could have been lip-synching you could have been lip-synching they could have been lip-synching

Negation

Simple form	V-ing form
I could not lip-synch you could not lip-synch he could not lip-synch we could not lip-synch you could not lip-synch they could not lip-synch	I could not be lip-synching you could not be lip-synching he could not be lip-synching we could not be lip-synching you could not be lip-synching they could not be lip-synching
Perfect	V-ing perfect
I could not have lip-synched you could not have lip-synched he could not have lip-synched we could not have lip-synched you could not have lip-synched they could not have lip-synched	I could not have been lip-synching you could not have been lip-synching he could not have been lip-synching we could not have been lip-synching you could not have been lip-synching they could not have been lip-synching

Interrogative form

Simple form	V-ing form
could I lip-synch? could you lip-synch? could he lip-synch? could we lip-synch? could you lip-synch? could they lip-synch?	could I be lip-synching? could you be lip-synching? could he be lip-synching? could we be lip-synching? could you be lip-synching? could they be lip-synching?
Perfect	V-ing perfect
could I have lip-synched? could you have lip-synched? could he have lip-synched? could we have lip-synched? could you have lip-synched? could they have lip-synched?	could I have been lip-synching? could you have been lip-synching? could he have been lip-synching? could we have been lip-synching? could you have been lip-synching? could they have been lip-synching?

Interro-negative form

Simple form	V-ing form
could I not lip-synch? could you not lip-synch? could he not lip-synch? could we not lip-synch? could you not lip-synch? could they not lip-synch?	could I not be lip-synching? could you not be lip-synching? could he not be lip-synching? could we not be lip-synching? could you not be lip-synching? could they not be lip-synching?
Perfect	V-ing perfect
could I not have lip-synched? could you not have lip-synched? could he not have lip-synched? could we not have lip-synched? could you not have lip-synched? could they not have lip-synched?	could I not have been lip-synching? could you not have been lip-synching? could he not have been lip-synching? could we not have been lip-synching? could you not have been lip-synching? could they not have been lip-synching?