English verb conjugation
COULD PHASE

Regular verb: phase - phased - phased

Affirmation

Simple form	V-ing form
I could phase you could phase she could phase we could phase you could phase they could phase	I could be phasing you could be phasing she could be phasing we could be phasing you could be phasing they could be phasing
Perfect	V-ing perfect
I could have phased you could have phased she could have phased we could have phased you could have phased they could have phased	I could have been phasing you could have been phasing she could have been phasing we could have been phasing you could have been phasing they could have been phasing

Negation

Simple form	V-ing form
I couldn't phase you couldn't phase she couldn't phase we couldn't phase you couldn't phase they couldn't phase	I couldn't be phasing you couldn't be phasing she couldn't be phasing we couldn't be phasing you couldn't be phasing they couldn't be phasing
Perfect	V-ing perfect
I couldn't have phased you couldn't have phased she couldn't have phased we couldn't have phased you couldn't have phased they couldn't have phased	I couldn't have been phasing you couldn't have been phasing she couldn't have been phasing we couldn't have been phasing you couldn't have been phasing they couldn't have been phasing

Interrogative form

Simple form	V-ing form
could I phase? could you phase? could she phase? could we phase? could you phase? could they phase?	could I be phasing? could you be phasing? could she be phasing? could we be phasing? could you be phasing? could they be phasing?
Perfect	V-ing perfect
could I have phased? could you have phased? could she have phased? could we have phased? could you have phased? could they have phased?	could I have been phasing? could you have been phasing? could she have been phasing? could we have been phasing? could you have been phasing? could they have been phasing?

Interro-negative form

Simple form	V-ing form
couldn't I phase? couldn't you phase? couldn't she phase? couldn't we phase? couldn't you phase? couldn't they phase?	couldn't I be phasing? couldn't you be phasing? couldn't she be phasing? couldn't we be phasing? couldn't you be phasing? couldn't they be phasing?
Perfect	V-ing perfect
couldn't I have phased? couldn't you have phased? couldn't she have phased? couldn't we have phased? couldn't you have phased? couldn't they have phased?	couldn't I have been phasing? couldn't you have been phasing? couldn't she have been phasing? couldn't we have been phasing? couldn't you have been phasing? couldn't they have been phasing?