English verb conjugation
COULD RUBBERISE

Regular verb: rubberise - rubberised - rubberised

Affirmation

Simple form	V-ing form
I could rubberise you could rubberise she could rubberise we could rubberise you could rubberise they could rubberise	I could be rubberising you could be rubberising she could be rubberising we could be rubberising you could be rubberising they could be rubberising
Perfect	V-ing perfect
I could have rubberised you could have rubberised she could have rubberised we could have rubberised you could have rubberised they could have rubberised	I could have been rubberising you could have been rubberising she could have been rubberising we could have been rubberising you could have been rubberising they could have been rubberising

Negation

Simple form	V-ing form
I couldn't rubberise you couldn't rubberise she couldn't rubberise we couldn't rubberise you couldn't rubberise they couldn't rubberise	I couldn't be rubberising you couldn't be rubberising she couldn't be rubberising we couldn't be rubberising you couldn't be rubberising they couldn't be rubberising
Perfect	V-ing perfect
I couldn't have rubberised you couldn't have rubberised she couldn't have rubberised we couldn't have rubberised you couldn't have rubberised they couldn't have rubberised	I couldn't have been rubberising you couldn't have been rubberising she couldn't have been rubberising we couldn't have been rubberising you couldn't have been rubberising they couldn't have been rubberising

Interrogative form

Simple form	V-ing form
could I rubberise? could you rubberise? could she rubberise? could we rubberise? could you rubberise? could they rubberise?	could I be rubberising? could you be rubberising? could she be rubberising? could we be rubberising? could you be rubberising? could they be rubberising?
Perfect	V-ing perfect
could I have rubberised? could you have rubberised? could she have rubberised? could we have rubberised? could you have rubberised? could they have rubberised?	could I have been rubberising? could you have been rubberising? could she have been rubberising? could we have been rubberising? could you have been rubberising? could they have been rubberising?

Interro-negative form

Simple form	V-ing form
couldn't I rubberise? couldn't you rubberise? couldn't she rubberise? couldn't we rubberise? couldn't you rubberise? couldn't they rubberise?	couldn't I be rubberising? couldn't you be rubberising? couldn't she be rubberising? couldn't we be rubberising? couldn't you be rubberising? couldn't they be rubberising?
Perfect	V-ing perfect
couldn't I have rubberised? couldn't you have rubberised? couldn't she have rubberised? couldn't we have rubberised? couldn't you have rubberised? couldn't they have rubberised?	couldn't I have been rubberising? couldn't you have been rubberising? couldn't she have been rubberising? couldn't we have been rubberising? couldn't you have been rubberising? couldn't they have been rubberising?