English verb conjugation
COULD CATECHISE

Regular verb: catechise - catechised - catechised

Affirmation

Simple form	V-ing form
I could catechise you could catechise he could catechise we could catechise you could catechise they could catechise	I could be catechising you could be catechising he could be catechising we could be catechising you could be catechising they could be catechising
Perfect	V-ing perfect
I could have catechised you could have catechised he could have catechised we could have catechised you could have catechised they could have catechised	I could have been catechising you could have been catechising he could have been catechising we could have been catechising you could have been catechising they could have been catechising

Negation

Simple form	V-ing form
I couldn't catechise you couldn't catechise he couldn't catechise we couldn't catechise you couldn't catechise they couldn't catechise	I couldn't be catechising you couldn't be catechising he couldn't be catechising we couldn't be catechising you couldn't be catechising they couldn't be catechising
Perfect	V-ing perfect
I couldn't have catechised you couldn't have catechised he couldn't have catechised we couldn't have catechised you couldn't have catechised they couldn't have catechised	I couldn't have been catechising you couldn't have been catechising he couldn't have been catechising we couldn't have been catechising you couldn't have been catechising they couldn't have been catechising

Interrogative form

Simple form	V-ing form
could I catechise? could you catechise? could he catechise? could we catechise? could you catechise? could they catechise?	could I be catechising? could you be catechising? could he be catechising? could we be catechising? could you be catechising? could they be catechising?
Perfect	V-ing perfect
could I have catechised? could you have catechised? could he have catechised? could we have catechised? could you have catechised? could they have catechised?	could I have been catechising? could you have been catechising? could he have been catechising? could we have been catechising? could you have been catechising? could they have been catechising?

Interro-negative form

Simple form	V-ing form
couldn't I catechise? couldn't you catechise? couldn't he catechise? couldn't we catechise? couldn't you catechise? couldn't they catechise?	couldn't I be catechising? couldn't you be catechising? couldn't he be catechising? couldn't we be catechising? couldn't you be catechising? couldn't they be catechising?
Perfect	V-ing perfect
couldn't I have catechised? couldn't you have catechised? couldn't he have catechised? couldn't we have catechised? couldn't you have catechised? couldn't they have catechised?	couldn't I have been catechising? couldn't you have been catechising? couldn't he have been catechising? couldn't we have been catechising? couldn't you have been catechising? couldn't they have been catechising?