English verb conjugation
COULD MERCERISE

Regular verb: mercerise - mercerised - mercerised

Affirmation

Simple form	V-ing form
I could mercerise you could mercerise he could mercerise we could mercerise you could mercerise they could mercerise	I could be mercerising you could be mercerising he could be mercerising we could be mercerising you could be mercerising they could be mercerising
Perfect	V-ing perfect
I could have mercerised you could have mercerised he could have mercerised we could have mercerised you could have mercerised they could have mercerised	I could have been mercerising you could have been mercerising he could have been mercerising we could have been mercerising you could have been mercerising they could have been mercerising

Negation

Simple form	V-ing form
I couldn't mercerise you couldn't mercerise he couldn't mercerise we couldn't mercerise you couldn't mercerise they couldn't mercerise	I couldn't be mercerising you couldn't be mercerising he couldn't be mercerising we couldn't be mercerising you couldn't be mercerising they couldn't be mercerising
Perfect	V-ing perfect
I couldn't have mercerised you couldn't have mercerised he couldn't have mercerised we couldn't have mercerised you couldn't have mercerised they couldn't have mercerised	I couldn't have been mercerising you couldn't have been mercerising he couldn't have been mercerising we couldn't have been mercerising you couldn't have been mercerising they couldn't have been mercerising

Interrogative form

Simple form	V-ing form
could I mercerise? could you mercerise? could he mercerise? could we mercerise? could you mercerise? could they mercerise?	could I be mercerising? could you be mercerising? could he be mercerising? could we be mercerising? could you be mercerising? could they be mercerising?
Perfect	V-ing perfect
could I have mercerised? could you have mercerised? could he have mercerised? could we have mercerised? could you have mercerised? could they have mercerised?	could I have been mercerising? could you have been mercerising? could he have been mercerising? could we have been mercerising? could you have been mercerising? could they have been mercerising?

Interro-negative form

Simple form	V-ing form
couldn't I mercerise? couldn't you mercerise? couldn't he mercerise? couldn't we mercerise? couldn't you mercerise? couldn't they mercerise?	couldn't I be mercerising? couldn't you be mercerising? couldn't he be mercerising? couldn't we be mercerising? couldn't you be mercerising? couldn't they be mercerising?
Perfect	V-ing perfect
couldn't I have mercerised? couldn't you have mercerised? couldn't he have mercerised? couldn't we have mercerised? couldn't you have mercerised? couldn't they have mercerised?	couldn't I have been mercerising? couldn't you have been mercerising? couldn't he have been mercerising? couldn't we have been mercerising? couldn't you have been mercerising? couldn't they have been mercerising?