Looking on the internet deeply has found these results:

For two years I've been developing is the most popular phrase on the web.

For two years I'm developing 11 results on the web	For two years I've been developing 14 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
For two years I'd been seeing people through the glass. And I've spent two years developing this company. In proposing an increase in the budget, after these two years of developing the programme, the Community intends to meet the high expectations shown by ordinary people. year Those frames are separated by about a second through the eyes of 35 typically developing two olds, and we freeze one frame, and this is what the typical children are doing. For two years I've been fighting this. Turns out, since I won't be getting at the old man's cut for two years I'm in a little bit of a financial bind.	It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

For two years I'm developing

11 results on the web

For two years I've been developing

14 results on the web

More popular!

For two years I'd been seeing people through the glass.
And I've spent two years developing this company.
In proposing an increase in the budget, after these two years of developing the programme, the Community intends to meet the high expectations shown by ordinary people.
year
Those frames are separated by about a second through the eyes of 35 typically developing two
olds, and we freeze one frame, and this is what the typical children are doing.
For two years I've been fighting this.
Turns out, since I won't be getting at the old man's cut for two years I'm in a little bit of a financial bind.

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.