English verb conjugation
COULD MONGRELISE

Regular verb: mongrelise - mongrelised - mongrelised

Affirmation

Simple form	V-ing form
I could mongrelise you could mongrelise he could mongrelise we could mongrelise you could mongrelise they could mongrelise	I could be mongrelising you could be mongrelising he could be mongrelising we could be mongrelising you could be mongrelising they could be mongrelising
Perfect	V-ing perfect
I could have mongrelised you could have mongrelised he could have mongrelised we could have mongrelised you could have mongrelised they could have mongrelised	I could have been mongrelising you could have been mongrelising he could have been mongrelising we could have been mongrelising you could have been mongrelising they could have been mongrelising

Negation

Simple form	V-ing form
I couldn't mongrelise you couldn't mongrelise he couldn't mongrelise we couldn't mongrelise you couldn't mongrelise they couldn't mongrelise	I couldn't be mongrelising you couldn't be mongrelising he couldn't be mongrelising we couldn't be mongrelising you couldn't be mongrelising they couldn't be mongrelising
Perfect	V-ing perfect
I couldn't have mongrelised you couldn't have mongrelised he couldn't have mongrelised we couldn't have mongrelised you couldn't have mongrelised they couldn't have mongrelised	I couldn't have been mongrelising you couldn't have been mongrelising he couldn't have been mongrelising we couldn't have been mongrelising you couldn't have been mongrelising they couldn't have been mongrelising

Interrogative form

Simple form	V-ing form
could I mongrelise? could you mongrelise? could he mongrelise? could we mongrelise? could you mongrelise? could they mongrelise?	could I be mongrelising? could you be mongrelising? could he be mongrelising? could we be mongrelising? could you be mongrelising? could they be mongrelising?
Perfect	V-ing perfect
could I have mongrelised? could you have mongrelised? could he have mongrelised? could we have mongrelised? could you have mongrelised? could they have mongrelised?	could I have been mongrelising? could you have been mongrelising? could he have been mongrelising? could we have been mongrelising? could you have been mongrelising? could they have been mongrelising?

Interro-negative form

Simple form	V-ing form
couldn't I mongrelise? couldn't you mongrelise? couldn't he mongrelise? couldn't we mongrelise? couldn't you mongrelise? couldn't they mongrelise?	couldn't I be mongrelising? couldn't you be mongrelising? couldn't he be mongrelising? couldn't we be mongrelising? couldn't you be mongrelising? couldn't they be mongrelising?
Perfect	V-ing perfect
couldn't I have mongrelised? couldn't you have mongrelised? couldn't he have mongrelised? couldn't we have mongrelised? couldn't you have mongrelised? couldn't they have mongrelised?	couldn't I have been mongrelising? couldn't you have been mongrelising? couldn't he have been mongrelising? couldn't we have been mongrelising? couldn't you have been mongrelising? couldn't they have been mongrelising?