English verb conjugation
COULD LEMMATISE

Regular verb: lemmatise - lemmatised - lemmatised

Affirmation

Simple form	V-ing form
I could lemmatise you could lemmatise he could lemmatise we could lemmatise you could lemmatise they could lemmatise	I could be lemmatising you could be lemmatising he could be lemmatising we could be lemmatising you could be lemmatising they could be lemmatising
Perfect	V-ing perfect
I could have lemmatised you could have lemmatised he could have lemmatised we could have lemmatised you could have lemmatised they could have lemmatised	I could have been lemmatising you could have been lemmatising he could have been lemmatising we could have been lemmatising you could have been lemmatising they could have been lemmatising

Negation

Simple form	V-ing form
I could not lemmatise you could not lemmatise he could not lemmatise we could not lemmatise you could not lemmatise they could not lemmatise	I could not be lemmatising you could not be lemmatising he could not be lemmatising we could not be lemmatising you could not be lemmatising they could not be lemmatising
Perfect	V-ing perfect
I could not have lemmatised you could not have lemmatised he could not have lemmatised we could not have lemmatised you could not have lemmatised they could not have lemmatised	I could not have been lemmatising you could not have been lemmatising he could not have been lemmatising we could not have been lemmatising you could not have been lemmatising they could not have been lemmatising

Interrogative form

Simple form	V-ing form
could I lemmatise? could you lemmatise? could he lemmatise? could we lemmatise? could you lemmatise? could they lemmatise?	could I be lemmatising? could you be lemmatising? could he be lemmatising? could we be lemmatising? could you be lemmatising? could they be lemmatising?
Perfect	V-ing perfect
could I have lemmatised? could you have lemmatised? could he have lemmatised? could we have lemmatised? could you have lemmatised? could they have lemmatised?	could I have been lemmatising? could you have been lemmatising? could he have been lemmatising? could we have been lemmatising? could you have been lemmatising? could they have been lemmatising?

Interro-negative form

Simple form	V-ing form
could I not lemmatise? could you not lemmatise? could he not lemmatise? could we not lemmatise? could you not lemmatise? could they not lemmatise?	could I not be lemmatising? could you not be lemmatising? could he not be lemmatising? could we not be lemmatising? could you not be lemmatising? could they not be lemmatising?
Perfect	V-ing perfect
could I not have lemmatised? could you not have lemmatised? could he not have lemmatised? could we not have lemmatised? could you not have lemmatised? could they not have lemmatised?	could I not have been lemmatising? could you not have been lemmatising? could he not have been lemmatising? could we not have been lemmatising? could you not have been lemmatising? could they not have been lemmatising?