English verb conjugation
COULD SERIALISE

Regular verb: serialise - serialised - serialised

Affirmation

Simple form	V-ing form
I could serialise you could serialise she could serialise we could serialise you could serialise they could serialise	I could be serialising you could be serialising she could be serialising we could be serialising you could be serialising they could be serialising
Perfect	V-ing perfect
I could have serialised you could have serialised she could have serialised we could have serialised you could have serialised they could have serialised	I could have been serialising you could have been serialising she could have been serialising we could have been serialising you could have been serialising they could have been serialising

Negation

Simple form	V-ing form
I couldn't serialise you couldn't serialise she couldn't serialise we couldn't serialise you couldn't serialise they couldn't serialise	I couldn't be serialising you couldn't be serialising she couldn't be serialising we couldn't be serialising you couldn't be serialising they couldn't be serialising
Perfect	V-ing perfect
I couldn't have serialised you couldn't have serialised she couldn't have serialised we couldn't have serialised you couldn't have serialised they couldn't have serialised	I couldn't have been serialising you couldn't have been serialising she couldn't have been serialising we couldn't have been serialising you couldn't have been serialising they couldn't have been serialising

Interrogative form

Simple form	V-ing form
could I serialise? could you serialise? could she serialise? could we serialise? could you serialise? could they serialise?	could I be serialising? could you be serialising? could she be serialising? could we be serialising? could you be serialising? could they be serialising?
Perfect	V-ing perfect
could I have serialised? could you have serialised? could she have serialised? could we have serialised? could you have serialised? could they have serialised?	could I have been serialising? could you have been serialising? could she have been serialising? could we have been serialising? could you have been serialising? could they have been serialising?

Interro-negative form

Simple form	V-ing form
couldn't I serialise? couldn't you serialise? couldn't she serialise? couldn't we serialise? couldn't you serialise? couldn't they serialise?	couldn't I be serialising? couldn't you be serialising? couldn't she be serialising? couldn't we be serialising? couldn't you be serialising? couldn't they be serialising?
Perfect	V-ing perfect
couldn't I have serialised? couldn't you have serialised? couldn't she have serialised? couldn't we have serialised? couldn't you have serialised? couldn't they have serialised?	couldn't I have been serialising? couldn't you have been serialising? couldn't she have been serialising? couldn't we have been serialising? couldn't you have been serialising? couldn't they have been serialising?