English verb conjugation
COULD MUSE

Regular verb: muse - mused - mused

Affirmation

Simple form	V-ing form
I could muse you could muse she could muse we could muse you could muse they could muse	I could be musing you could be musing she could be musing we could be musing you could be musing they could be musing
Perfect	V-ing perfect
I could have mused you could have mused she could have mused we could have mused you could have mused they could have mused	I could have been musing you could have been musing she could have been musing we could have been musing you could have been musing they could have been musing

Negation

Simple form	V-ing form
I couldn't muse you couldn't muse she couldn't muse we couldn't muse you couldn't muse they couldn't muse	I couldn't be musing you couldn't be musing she couldn't be musing we couldn't be musing you couldn't be musing they couldn't be musing
Perfect	V-ing perfect
I couldn't have mused you couldn't have mused she couldn't have mused we couldn't have mused you couldn't have mused they couldn't have mused	I couldn't have been musing you couldn't have been musing she couldn't have been musing we couldn't have been musing you couldn't have been musing they couldn't have been musing

Interrogative form

Simple form	V-ing form
could I muse? could you muse? could she muse? could we muse? could you muse? could they muse?	could I be musing? could you be musing? could she be musing? could we be musing? could you be musing? could they be musing?
Perfect	V-ing perfect
could I have mused? could you have mused? could she have mused? could we have mused? could you have mused? could they have mused?	could I have been musing? could you have been musing? could she have been musing? could we have been musing? could you have been musing? could they have been musing?

Interro-negative form

Simple form	V-ing form
couldn't I muse? couldn't you muse? couldn't she muse? couldn't we muse? couldn't you muse? couldn't they muse?	couldn't I be musing? couldn't you be musing? couldn't she be musing? couldn't we be musing? couldn't you be musing? couldn't they be musing?
Perfect	V-ing perfect
couldn't I have mused? couldn't you have mused? couldn't she have mused? couldn't we have mused? couldn't you have mused? couldn't they have mused?	couldn't I have been musing? couldn't you have been musing? couldn't she have been musing? couldn't we have been musing? couldn't you have been musing? couldn't they have been musing?