English verb conjugation
TO INVESTIGATE

Regular verb: investigate - investigated - investigated

Indicative

Present	Present continuous	Preterite	Preterite continuous
do I investigate? do you investigate? does she investigate? do we investigate? do you investigate? do they investigate?	am I investigating? are you investigating? is she investigating? are we investigating? are you investigating? are they investigating?	did I investigate? did you investigate? did she investigate? did we investigate? did you investigate? did they investigate?	was I investigating? were you investigating? was she investigating? were we investigating? were you investigating? were they investigating?
Present perfect	Present perfect continuous	Pluperfect	Pluperfect continuous
have I investigated? have you investigated? has she investigated? have we investigated? have you investigated? have they investigated?	have I been investigating? have you been investigating? has she been investigating? have we been investigating? have you been investigating? have they been investigating?	had I investigated? had you investigated? had she investigated? had we investigated? had you investigated? had they investigated?	had I been investigating? had you been investigating? had she been investigating? had we been investigating? had you been investigating? had they been investigating?
Future	Future continuous	Future perfect	Future perfect continuous
will I investigate? will you investigate? will she investigate? will we investigate? will you investigate? will they investigate?	will I be investigating? will you be investigating? will she be investigating? will we be investigating? will you be investigating? will they be investigating?	will I have investigated? will you have investigated? will she have investigated? will we have investigated? will you have investigated? will they have investigated?	will I have been investigating? will you have been investigating? will she have been investigating? will we have been investigating? will you have been investigating? will they have been investigating?

Conditional

Present	Present continuous	Past	Past continuous
would I investigate? would you investigate? would she investigate? would we investigate? would you investigate? would they investigate?	would I be investigating? would you be investigating? would she be investigating? would we be investigating? would you be investigating? would they be investigating?	would I have investigated? would you have investigated? would she have investigated? would we have investigated? would you have investigated? would they have investigated?	would I have been investigating? would you have been investigating? would she have been investigating? would we have been investigating? would you have been investigating? would they have been investigating?

Infinitive

Imperative

Infinitive		Imperative
to investigate		- - -

Participle

Present	Past
investigating	investigated