English verb conjugation
COULD HARMONISE

Regular verb: harmonise - harmonised - harmonised

Affirmation

Simple form	V-ing form
I could harmonise you could harmonise she could harmonise we could harmonise you could harmonise they could harmonise	I could be harmonising you could be harmonising she could be harmonising we could be harmonising you could be harmonising they could be harmonising
Perfect	V-ing perfect
I could have harmonised you could have harmonised she could have harmonised we could have harmonised you could have harmonised they could have harmonised	I could have been harmonising you could have been harmonising she could have been harmonising we could have been harmonising you could have been harmonising they could have been harmonising

Negation

Simple form	V-ing form
I couldn't harmonise you couldn't harmonise she couldn't harmonise we couldn't harmonise you couldn't harmonise they couldn't harmonise	I couldn't be harmonising you couldn't be harmonising she couldn't be harmonising we couldn't be harmonising you couldn't be harmonising they couldn't be harmonising
Perfect	V-ing perfect
I couldn't have harmonised you couldn't have harmonised she couldn't have harmonised we couldn't have harmonised you couldn't have harmonised they couldn't have harmonised	I couldn't have been harmonising you couldn't have been harmonising she couldn't have been harmonising we couldn't have been harmonising you couldn't have been harmonising they couldn't have been harmonising

Interrogative form

Simple form	V-ing form
could I harmonise? could you harmonise? could she harmonise? could we harmonise? could you harmonise? could they harmonise?	could I be harmonising? could you be harmonising? could she be harmonising? could we be harmonising? could you be harmonising? could they be harmonising?
Perfect	V-ing perfect
could I have harmonised? could you have harmonised? could she have harmonised? could we have harmonised? could you have harmonised? could they have harmonised?	could I have been harmonising? could you have been harmonising? could she have been harmonising? could we have been harmonising? could you have been harmonising? could they have been harmonising?

Interro-negative form

Simple form	V-ing form
couldn't I harmonise? couldn't you harmonise? couldn't she harmonise? couldn't we harmonise? couldn't you harmonise? couldn't they harmonise?	couldn't I be harmonising? couldn't you be harmonising? couldn't she be harmonising? couldn't we be harmonising? couldn't you be harmonising? couldn't they be harmonising?
Perfect	V-ing perfect
couldn't I have harmonised? couldn't you have harmonised? couldn't she have harmonised? couldn't we have harmonised? couldn't you have harmonised? couldn't they have harmonised?	couldn't I have been harmonising? couldn't you have been harmonising? couldn't she have been harmonising? couldn't we have been harmonising? couldn't you have been harmonising? couldn't they have been harmonising?